Perhaps you should try some spelling variations:
"acoustical engineering" » "optical engineering", "biomedical engineering", "industrial engineering"
"electrical engineer" » "electrical engineers", "electrical engineer's", "electrical engine"
"electrical engineering" » "electrical engineersing", "electrical engineer'sing", "electrical engineing"

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: (("electrical engineer") OR ((("acoustical engineering") OR ("electrical engineering"))))*.
• Removing quotes may allow a broader search: (( electrical engineer ) or ((( acoustical engineering ) or ( electrical engineering ))))*.