Perhaps you should try some spelling variations:
"computer aimed design" » "computer aid design", "computer added design", "computer aide design", "computer timed design", "computer mixed design", "computer fixed design"
"computer timed designs" » "computer time designs", "compute time designs", "computers time designs", "computer timed design", "computer aided designs", "computer time design"
"computer aided design" » "computer added 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 aided design"))) OR ("computer timed designs")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"computer aimed design\") OR (\"computer aided design\"))) or (\"computer timed designs\"))".
• Removing quotes may allow a broader search: (((( computer aimed design ) OR ( computer aided design ))) or ( computer timed designs )).
• Adding a wildcard symbol may retrieve word variants: (((("computer aimed design") OR ("computer aided design"))) or ("computer timed designs"))*.