How to conduct Basic Search Strategies?

Through boolean operators (AND,OR,NOT)

Boolean logic is considered a well-known search strategy used in search engines and in databases; it helps the user to narrow and broaden his search to get accurate information.

AND: It narrows the search and retrieve records containing all of the terms (both words) mentioned in the search.

Example: Library services AND Marketing.

OR: It broadens the search and retrieves results containing any (or both )of the words mentioned in the search.

Example: Management OR Administration.

NOT: it Narrows the search and retrieve records that do not contain the term following it.

Example: Medicine NOT Herbal medicine.