To search for an exact word, type it all
The method "And" gives images results if all the keywords are found, it search for a complete phrase or an expression
The method "Or" gives images results if one or more keywords are found
Do not use special characters, such as &, #, %, ...
"First word(s) character" let you search for any words that start with the characters you type. So you don't need to enter the whole word
"Without" let you reduce the amount of result by getting rid off the result containing these typed words.