by adding search terms with the operator OR
by adding search terms with the operator AND
by replacing the word ending with an asterisk
by adding search terms with the operator NOT
to mark unimportant words
to find an exact phrase
to mark important words
to mark word that should not appear in the search results
(aggressi* OR violence) AND children
(aggressi* OR violen*) AND (television OR tv) AND (child* OR adolescen* OR teen*)
(aggression OR violence) AND television AND children OR adolescents
"aggressive behavior" AND television OR tv
to find words with the same stem and different endings
to replace characters in the middle of the word
to mark words that should not appear in the found texts