1. so far

So far everything is great.

We have been quite efficient so far.

This is what we know so far.

I want to ask if you’ve had any problems so far.

2. on one’s own

When I was assigned a task in the company, I was totally on my own.

I have solved the problem on my own.

His mother raised Ben and his older brother on her own.

The old man is living on his own. 

They tell children not to be influenced by other people, but to learn on their own what is right and what is wrong.

3. in search of...

There was a flock of doves that flew in search of food.

They set out at once in search of the missing girl.

He went to the south in search of better prospects (前景).

He spent the first half of his life in search of a stable marriage.

Many doctors and nurses in search of better pay are moving to the U.S. mainland.