Perhaps you should try some spelling variations:
computer simple » computing simple, complex simple, complete simple
computer apple » computers applied, computer example, computer people
computer appse » computer als, computer age, computer acts
computer aids » computer aid, computer aided, computer als
life science » life sciences
apple » appe, appse
appl. » app., apps.
fire » file, five, firm

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 apple) OR (computer simple)). in life science ) OR ( ((computer appse) OR (computer aids)). in life science ))) OR ( computer appl. in fire science )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( ((computer apple) OR (computer simple)). in life science ) or ( ((computer appse) or (computer aids)). in life science ))) or ( computer appl. in fire science ))".
• Adding a wildcard symbol may retrieve word variants: (((( ((computer apple) OR (computer simple)). in life science ) or ( ((computer appse) or (computer aids)). in life science ))) or ( computer appl. in fire science ))*.