Perhaps you should try some spelling variations:
"network coding coding _ programming" » "network coding decoding _ programming" (Expand search), "network coding using _ programming" (Expand search), "network coding canine _ programming" (Expand search)
"python python coding python programming" » "pythons python coding python programming" (Expand search), "piton python coding python programming" (Expand search), "pitons python coding python programming" (Expand search), "python python codigo python programming" (Expand search), "python action coding python programming" (Expand search), "python python code python programming" (Expand search), "python python codigos python programming" (Expand search), "python python using 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: (("network coding coding _ programming") OR ("python python coding python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"network coding coding _ programming\") OR (\"python python coding python programming\"))".
• Removing quotes may allow a broader search: (( network coding coding _ programming ) OR ( python python coding python programming )).
• Adding a wildcard symbol may retrieve word variants: (("network coding coding _ programming") OR ("python python coding python programming"))*.