Ans:

1. Simple term
Search for an exact word (one or more characters without spaces) or a phrase.

For example, paperweight or Crystal Paperweight.


2. Prefix term
Search for words or phrases beginning with the specified text. Add an asterisk (*) at the end of text, so that all text starting with the simple term specified before the asterisk is matched.

For example, paper* will match paperweight, paper machine, and paper roll.


3.Logical operation
Logical operation is allowed in search phase. You can use AND, OR, or both in search text. The search result will be returned according the logic you