Perhaps you should try some spelling variations:
"point source–channel decoding" » "point sources–channel decoding" (Expand Search), "point resource–channel decoding" (Expand Search)
"joint rereresourcessssssssssssss–channel decoding" » "joint rereresourcesssssssssssssss–channel decoding" (Expand Search), "joint rerereresourcessssssssssssss–channel decoding" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"point source–channel decoding\") OR (\"joint rereresourcessssssssssssss–channel decoding\"))~".
• Removing quotes may allow a broader search: (( point source–channel decoding ) OR ( joint rereresourcessssssssssssss–channel decoding ))~.
• Adding a wildcard symbol may retrieve word variants: (("point source–channel decoding") OR ("joint rereresourcessssssssssssss–channel decoding"))*.