Perhaps you should try some spelling variations:
added designeds » added designed, aided designed, added designs
computer added » computer aided, computer guided, computer age
added design » added designs, aided design, adder 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 added design ) OR ( computer added designeds )).
• Adding a wildcard symbol may retrieve word variants: (( computer added design ) or ( computer added designeds ))*.