Perhaps you should try some spelling variations:
"computer guided design" » "computer aided design", "computer guide design", "computer aided designs"
"computer aimed design" » "computer aided design", "computer aide design", "computer animated design", "computer timed design", "computer timed designs"
"computer added design" » "computer aided design", "computer age design", "computer aids design", "computer added designs", "computer adder design"
"computer aid design" » "computer aided design", "computer art design", "computer a design", "computer rapid design", "computer grid design"

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