full text view not return result

I have a view with full index on fullname. when i run

SELECT * 
FROM vwPersonSearch 

it returns rows

when I run:

SELECT *
FROM vwPersonSearch
WHERE [Full name] ='Mark RUSH')

It returns one row

when I run:

SELECT * 
FROM vwPersonSearch
WHERE contains([Full name],'"Mark*" AND "RUSH*"')

It doesn't return any row. Why so ?

According to the microsoft documentation(See Examples c and D) your usage of the asterisk indicates you are searching for strings that are prefixed with both the terms Mark and RUSH. I don't think this will return anything. Try changing it to this:

SELECT * FROM vwPersonSearch  WHERE contains([Full name],'"Mark*" AND "RUSH"')

This will search for strings that are prefixed with Mark and also contain RUSH.