Thanks @navindra for extending the forum.
But it is important to know what this search finds, and what not.
If your search word is "beginner" it finds only the whole word (case insensitive).
For instance "Beginner", "BEGINNER" or "beginner" would be found.
But not "beginners".
Another thing to know:
If you look for "sight reading", it searches all "sight" and "reading" words, but not the term "sight[blank]reading".
On the contrary "sight-reading" is considered as one single word, and it searches all occourences, when both words are connected by a hyphen.
3rd: finding: if you search for the term "beginner", it won't find the text inside member-signatures, as currently in mine.