Perhaps you should try some spelling variations:
"coder coder coupling level parallel" » "coder mode coupling level parallel" (Expand search), "coder model coupling level parallel" (Expand search), "coder core coupling level parallel" (Expand search), "coder coder coupling model parallel" (Expand search), "coder coder coupling level parallelism" (Expand search), "coder coder coupling over parallel" (Expand search), "coder decoder coupling level parallel" (Expand search), "code code coupling level parallel" (Expand search), "decoder codec coupling level parallel" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ python programming" (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: (("coder coder coupling level parallel") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coupling level parallel\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder coupling level parallel ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder coupling level parallel") OR ("on python python python programming"))*.