1/ LOOK FOR
Look for is used, in general, when you need to find something or someone:
Excuse me! I’m looking for the manager’s office. Do you know where it is?
I’ve been looking for a job for months.
Search is used when you look somewhere carefully, because you want to find something:
The police searched the house for evidence.
I searched the whole room, but I couldn’t find my watch anywhere.
You can also search for something:
We searched for a sunny spot for our picnic.
Seek is not used when talking about physical objects. It refers to the process of trying to get something:
Thousands are seeking asylum in Germany.
I think you’ll need to seek help.
Find is to get or achieve what you have been looking for/searching/seeking:
You won't believe where I found Jamie. (Finding after looking for)
I found a some pair of jeans in a very good condition in Walmart. (Finding after searching)
Poor little Adam finally found some peace after saving him from his abusive parents. (Finding after seeking).