Perhaps you should try some spelling variations:
"computer aimed design" » "computer aide design", "computer animated design", "computer assited design", "computer timed design", "computer timed designs", "computer fixed design"
"computer mixed design" » "computers mixed design", "computer mice design", "computing mixed design", "computer based design"
"computer added design" » "computer guided design", "computer age design", "computer aids design", "computer added designs", "computer adder design", "computer added designed"
"computer aided design" » "computer arted design", "computer aed design", "computer alsed design"
"computer aid design" » "computer art design", "computer a design", "computer als design", "computer rapid design", "computer grid design", "computer card 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 mixed design"))) OR ("computer aided design"))) 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 (\"computer mixed design\"))) or (\"computer aided design\"))) or (\"computer aid design\"))) or (\"computer added design\"))".
• Removing quotes may allow a broader search: (((((((( computer aimed design ) OR ( computer mixed design ))) or ( computer aided design ))) or ( computer aid design ))) or ( computer added design )).
• Adding a wildcard symbol may retrieve word variants: (((((((("computer aimed design") OR ("computer mixed design"))) or ("computer aided design"))) or ("computer aid design"))) or ("computer added design"))*.