Perhaps you should try some spelling variations:
communication circuit » communication circuits, communications circuits, communication current
element dimensions » elements dimensions, relevant dimensions, equipment dimensions
circuit element » circuit elements, circuits elements, circuit placement
gauge spaces » large space, safe spaces, use spaces
type spaces » state spaces

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: communication circuit element dimensions ((type spaces) or (gauge spaces))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication circuit element dimensions ((type spaces) OR (gauge spaces)).
• Adding a wildcard symbol may retrieve word variants: communication circuit element dimensions ((type spaces) or (gauge spaces))*.