Perhaps you should try some spelling variations:
computer added » computer aided, computer guided, computer age
timed designs » timed design, aided designs, time design
aimed design » aided design, timed design, mixed design
computer aid » computer aided, computer art, computer a
added design » added designs, aided design, adder design
aid design » aided design, rapid design, grid design

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 ((aimed design) OR (timed designs)) ) OR ( computer aid design ))) OR ( computer added design )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( computer ((aimed design) OR (timed designs)) ) or ( computer aid design ))) or ( computer added design ))".
• Adding a wildcard symbol may retrieve word variants: (((( computer ((aimed design) OR (timed designs)) ) or ( computer aid design ))) or ( computer added design ))*.