Perhaps you should try some spelling variations:
"joint rererererererereresourcesssssssssss–channel coding" » "joint rererererererereresourcessssssssssss–channel coding" (Expand Search)
"point source–channel coding" » "point sources–channel coding" (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: (("joint rererererererereresourcesssssssssss–channel coding") OR ("point source–channel coding"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"joint rererererererereresourcesssssssssss–channel coding\") OR (\"point source–channel coding\"))*".
• Removing quotes may allow a broader search: (( joint rererererererereresourcesssssssssss–channel coding ) OR ( point source–channel coding ))*.