Perhaps you should try some spelling variations:
"white burst communications directly" » "white rural communication directly" (Expand Search), "white b communications directly" (Expand Search), "white bfsk communication directly" (Expand Search), "white forest communications directly" (Expand Search)
"white edge communications directly" » "white large communications directly" (Expand Search), "white line communications directly" (Expand Search), "white rate communications 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 edge communications directly") OR ("white burst communications directly"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"white edge communications directly\") OR (\"white burst communications directly\"))".
• Removing quotes may allow a broader search: (( white edge communications directly ) OR ( white burst communications directly )).
• Adding a wildcard symbol may retrieve word variants: (("white edge communications directly") OR ("white burst communications directly"))*.