Searching a string in eclipse workspace

Question

How to search for a string in the complete eclipse workspace? I was not able to locate a text in the eclipse workspace however I could not find the specified string in the work

Answer 1

Eclipse does not search if the "File name patterns" field is empty.
So, if you want to search some text, write within "Containing text" field and leave
by default "File name patterns" with asterisk (*).