Perhaps you should try some spelling variations:
"electrical engineer's" » "electrical engineers", "electrical engine", "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: (((((("electrical line") OR ("practical engineer"))) OR ("electrical engineer's"))) OR ("electrical engineering")).
• Removing quotes may allow a broader search: (((((( electrical line ) or ( practical engineer ))) or ( electrical engineer's ))) or ( electrical engineering )).
• Adding a wildcard symbol may retrieve word variants: (((((("electrical line") or ("practical engineer"))) or ("electrical engineer's"))) or ("electrical engineering"))*.