Perhaps you should try some spelling variations:
"electrical engineering's" » "electrical engineer's", "electrical engineers", "electric engineering"
"practical engineer" » "practical engineering", "electrical engineers"
"electrical line" » "electrical life", "electrical engine", "electrical aging"

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