Perhaps you should try some spelling variations:
"electrical engineers's" » "electrical engineering", "electric engineering", "electrical engine", "electrical engines's", "electrical engineerings's", "practical engineers's"
"practical engineering" » "electrical engineering", "optical engineering", "physical engineering"
"electrical engineer's" » "electrical engineering", "electrical engine", "electric engineering", "electrical engine's", "electrical engineering's", "practical engineer's"
"electrical engineing" » "electrical engineering", "electrical engine", "electric engineering"
"electrical engineer" » "electrical engine", "electrical engineering", "practical engineer"

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 ("practical engineering"))) OR ((((("electrical engineers's") OR ("electrical engineer's"))) OR ("electrical engineing")))).
• Removing quotes may allow a broader search: (((( electrical engineer ) or ( practical engineering ))) or ((((( electrical engineers's ) or ( electrical engineer's ))) or ( electrical engineing )))).
• Adding a wildcard symbol may retrieve word variants: (((("electrical engineer") or ("practical engineering"))) or ((((("electrical engineers's") or ("electrical engineer's"))) or ("electrical engineing"))))*.