Perhaps you should try some spelling variations:
"computer example. in life science" » "computer examples. in life science", "computed example. in life science", "computed examples. in life science", "computer example. in life sciences"
"computer apple. in fire science" » "computer appl. in fire science", "computers applied. in fire science", "computer simple. in fire science", "computer apple. in file science", "computer apple. in five science", "computer apple. in firm science"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("computer example. in life science") OR ("computer apple. in fire science")).
• Removing quotes may allow a broader search: (( computer example. in life science ) or ( computer apple. in fire science )).
• Adding a wildcard symbol may retrieve word variants: (("computer example. in life science") or ("computer apple. in fire science"))*.