Wczoraj kupiłam małą torebkę, a dziś szukam większej na dokumenty.

In Polish past tense, the verb agrees with the gender of the speaker in the singular.

• kupiłam = I bought said by a woman
• kupiłem = I bought said by a man

So this sentence tells us the speaker is female.

Also, kupiłam comes from the verb kupić, which is the perfective form, so it suggests a completed action: she bought it, and that action is finished.

Both words change because małą torebkę is the direct object of kupiłam.

The base forms are:

• mała = small
• torebka = bag / handbag / purse

After kupić (to buy), the direct object goes into the accusative case. For a feminine singular noun like torebka, that gives:

• mała → małą
• torebka → torebkę

So:

• kupiłam małą torebkę = I bought a small bag

This is very common in Polish: adjectives usually match the noun in gender, number, and case.

Because the verb szukać usually takes the genitive case, not the accusative.

That is one of the most important things to learn with this verb:

• szukać kogo? czego? = to look for whom? what?

So the full form here is really:

• szukam większej torebki

not

• szukam większą torebkę

The adjective changes too:

• większa → większej
• torebka → torebki

So the sentence is using the correct case after szukam.

Because Polish often leaves out a noun when it is already obvious from context.

Here, większej means:

• a bigger one

The full version would be:

• Dziś szukam większej torebki na dokumenty.

But since torebka was already mentioned earlier, Polish can naturally shorten it to:

• Dziś szukam większej na dokumenty.

English does something similar with one:

• I bought a small bag yesterday, and today I’m looking for a bigger one.

Polish often just uses the adjective by itself, without needing a separate word like one.

większej is the comparative form meaning bigger or larger.

Its dictionary form is większy. In this sentence it appears as większej because it must match the omitted noun torebki in:

• gender: feminine
• number: singular
• case: genitive

So:

• większa torebka = a bigger bag
• szukam większej torebki = I’m looking for a bigger bag

English learners should notice that Polish comparatives also decline like adjectives.

Here na dokumenty means for documents or meant for documents.

This is a very common Polish pattern:

• coś na + accusative = something intended for a purpose / use

So:

• torebka na dokumenty = a bag for documents
• torba na zakupy = a bag for shopping
• pudełko na buty = a box for shoes

It is not about physical location here. It does not mean the documents are on the bag. It means the bag is for carrying documents.

A often links two ideas with a contrast or change of focus.

Here the contrast is:

• yesterday: she bought a small bag
• today: she is looking for a bigger one

So a works very naturally.

Roughly:

• i = and, simple addition
• a = and / while / but, with contrast or shift
• ale = but, stronger contradiction

In this sentence, a is the best choice because the second part is not a strong contradiction, just a contrasting follow-up.

Because the two actions are different in nature.

• kupiłam comes from kupić (perfective) and shows a completed event: the purchase happened and is finished.
• szukam comes from szukać (imperfective) and shows an ongoing process: she is currently looking for something.

This is a very natural aspect choice in Polish:

• completed, single result → perfective
• ongoing activity/process → imperfective

So the sentence contrasts a finished action with a current search.

Yes. Dziś and dzisiaj both mean today.

• dziś = shorter, a little more compact
• dzisiaj = slightly fuller form

In most contexts they are interchangeable:

• a dziś szukam większej
• a dzisiaj szukam większej

Both are correct and natural.

They are related, but they do not always mean exactly the same thing.

• torebka usually means a small bag, often a handbag, purse, or a smaller personal bag
• torba is more general and often sounds bigger or more practical, like a tote bag, shopping bag, sports bag, etc.

So mała torebka suggests something relatively small, which fits well with the later idea that the speaker now needs a bigger one for documents.

Polish word order is fairly flexible because case endings show the grammatical relationships.

The given sentence is natural and neutral:

• Wczoraj kupiłam małą torebkę, a dziś szukam większej na dokumenty.

But other orders are possible if you want different emphasis, for example:

• Małą torebkę kupiłam wczoraj, a dziś szukam większej na dokumenty.
• Dziś szukam większej na dokumenty, a wczoraj kupiłam małą torebkę.

The meaning stays basically the same, but the emphasis changes. The original version is a very standard, natural order.

Yes, that full version is completely correct and very natural.

• szukam większej torebki na dokumenty

The shorter version in the sentence:

• szukam większej na dokumenty

is also natural because torebki is easy to understand from the previous clause.

So the difference is mostly:

• full version = slightly more explicit
• shorter version = more economical, less repetitive

Both are good Polish.