Perhaps you should try some spelling variations:
"white edge communications direction" » "white edge communications promotion" (Expand Search), "white edge communication connection" (Expand Search), "white edge communication education" (Expand Search), "white large communications direction" (Expand Search), "white line communications direction" (Expand Search), "white rate communications direction" (Expand Search)
"white burst communication reception" » "white burst communication revolution" (Expand Search), "white burst communication connection" (Expand Search), "white burst communication education" (Expand Search), "white burst communications reception" (Expand Search), "white rural communication reception" (Expand Search), "white bfsk communication reception" (Expand Search), "white forest communication reception" (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 direction") OR ("white burst communication reception"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"white edge communications direction\") OR (\"white burst communication reception\"))*".
• Removing quotes may allow a broader search: (( white edge communications direction ) OR ( white burst communication reception ))*.