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