Explain the relevance of using the following criteria when searching for information on the internet,?

Question

+, -, NOT, AND, ""

Answer 1

1+2 will find i tems with both 1 + 2 in them
1-2 will find items with 1 in them but not if they also have 2
The logical-negation (logical-NOT) operator produces the value 0 if its operand is true (nonzero) and the value 1 if its operand is false (0).
The logical AND symbol is used in Boolean algebra to indicate a conjunction between two statements. A conjunction is true if, but only if, both of its components are true.

Answer 2

Having trouble with your homework? Or are you taking a test?

My suggestion is.....stop being lazy and look it up.