Syncronization: How to syncronize for page load or search record displayed in table?

Hello All, 

I am looking for dynamic syncronization meaning it should wait till the page load and then start the activities. Currently, I am using Delay(2000) method to do this but it is not effective as sometime the page is loaded quickly and sometimes not.

Also,I have another scenario where we are searching the record and it takes time, we are not sure how much time it will take to complete the operation. 

I would like to know what can I use in order to make the wait dynamic.

Regards,

Nimish