Perhaps you should try some spelling variations:
"computer-guided engineering" » "computer-guide toengineering", "computer-grid engineering", "computer-build engineering"
"computer-added engineering" » "computer-radder engineering", "computer-valued engineering", "computer-acid engineering"
"computer-aided engineering" » "computer-aimed engineering"

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