Perhaps you should try some spelling variations:
"mechanical engineering properties" » "electrical engineering properties", "mechanical engineering projects", "mechanical engineering proceedings", "mechanical engineering perspective"
"mechanical engineering processes" » "electrical engineering processes", "mechanical engineering process", "mechanical engineering profession", "mechanical engineering proceedings"

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: (("mechanical engineering properties") OR ("mechanical engineering processes")).
• Removing quotes may allow a broader search: (( mechanical engineering properties ) or ( mechanical engineering processes )).
• Adding a wildcard symbol may retrieve word variants: (("mechanical engineering properties") or ("mechanical engineering processes"))*.