Họ săn ở đây.

Họ usually means they or them when talking about a group of people.

A few useful notes:

• It is a third-person plural pronoun.
• It is commonly used for people, not usually for animals or things.
• Unlike English, Vietnamese pronouns often depend on social relationship, age, and tone, but họ is a fairly neutral way to say they.

In this sentence, họ is the subject: the people doing the action.

Săn most commonly means to hunt.

Depending on context, it can also be used more broadly in expressions like:

• săn thú = hunt animals
• săn ảnh = hunt for photos / photograph in a searching way
• săn việc = job-hunt
• săn sale = hunt for bargains

But in Họ săn ở đây, the most natural basic meaning is simply They hunt here.

Vietnamese often follows a Subject + Verb + Location pattern here:

• Họ = subject
• săn = verb
• ở đây = location phrase

So the structure is:

They + hunt + here

This is very similar to English in this case, which makes the sentence fairly straightforward.

Ở đây means here.

More literally:

• ở = at / in / located at
• đây = here, this place

Together, ở đây means here / in this place.

Vietnamese often uses ở before a place expression, especially when giving location. So while English can just say here, Vietnamese commonly says ở đây.

Examples:

• Tôi ở đây. = I am here.
• Họ làm việc ở đây. = They work here.

Usually, ở đây sounds more natural when you want to mean here as a location.

• Họ săn ở đây. = natural
• Họ săn đây. = not natural in standard Vietnamese

So in this sentence, you normally need ở.

That said, đây can appear without ở in other sentence types, especially when pointing something out:

• Đây là nhà tôi. = This is my house.
• Đây nhé. = Here it is / Here you go.

But for a location after a verb like săn, ở đây is the normal form.

Vietnamese verbs do not change form for tense the way English verbs do.

So săn can mean:

• hunt
• are hunting
• hunted
• will hunt

The exact time depends on context, or on added time words and markers.

For example:

• Họ đang săn ở đây. = They are hunting here.
• Họ đã săn ở đây. = They hunted here / have hunted here.
• Họ sẽ săn ở đây. = They will hunt here.

Without any marker, Họ săn ở đây is often understood as a simple general statement like They hunt here.

Yes, the tone is very important.

Họ has a heavy falling glottalized tone (the nặng tone), marked by the dot below: ọ.

Approximate pronunciation:

• h as in English hat
• ọ is a short aw/o-type vowel with the heavy tone

If you ignore the tone, people may misunderstand you or hear it as a different word.

Also:

• họ sounds quite different from ho or hó
• tone marks in Vietnamese are not optional in writing

Săn is pronounced with the ă vowel, which is short.

A rough guide:

• s in southern Vietnamese is often like English s
• in northern Vietnamese, s is sharper and different from x
• ă is a short vowel, not the same as a
• n is a normal final n

So săn is not the same as:

• san
• sẵn
• sán

The vowel and tone both matter.

Sometimes Vietnamese can omit the subject if it is clear from context, but in a standalone sentence like this, họ is normally included.

So:

• Họ săn ở đây. = complete and natural
• Săn ở đây. = possible only if the subject is already understood from context, but by itself it feels incomplete or more like a fragment

Vietnamese often drops words that are obvious from context, but in basic textbook-style sentences, the subject is usually stated.

Yes, it is grammatically natural, but whether it sounds natural in real life depends on context.

A native speaker might also say more specific things such as:

• Họ đi săn ở đây. = They go hunting here.
• Người ta săn ở đây. = People hunt here.
• Họ săn thú ở đây. = They hunt animals here.

So Họ săn ở đây is correct and understandable, but in real conversation Vietnamese speakers often add more detail if needed.

Yes, a little.

Họ can sometimes feel slightly detached or non-personal, especially compared with pronouns used for people in a closer social relationship.

For example, if you know exactly who the people are, Vietnamese might sometimes use:

• mấy người đó = those people
• bọn họ = they / that group of people
• a kinship pronoun, depending on relationship

But họ is still very common and perfectly fine in neutral statements like this one.

Both can mean something like here, but they are used a bit differently.

• ở đây = the normal everyday way to say here
• tại đây = more formal, written, or official-sounding

So:

• Họ săn ở đây. = normal everyday sentence
• Họ săn tại đây. = grammatical, but more formal or marked

For everyday speech, ở đây is the better choice.