Perhaps you should try some spelling variations:
house communications » mobile communications (Expand Search), burst communications (Expand Search), edge communications (Expand Search)
voice communications » mobile communications (Expand Search), device communications (Expand Search), line communications (Expand Search)
bfsk communication » risk communication (Expand Search), mass communication (Expand Search), band communication (Expand Search)
director » direction (Expand Search), direct (Expand Search), directly (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: white ((((house communications) OR (bfsk communication))) OR (voice communications)) director~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "white ((((house communications) OR (bfsk communication))) OR (voice communications)) director".
• Adding a wildcard symbol may retrieve word variants: white ((((house communications) OR (bfsk communication))) OR (voice communications)) director*.