Perhaps you should try some spelling variations:
"coder using network coding problem" » "coder using network coding problems" (Expand search), "coder using network coping problem" (Expand search), "coder using network loading problem" (Expand search), "coder business network coding problem" (Expand search), "coders using network coding problem" (Expand search), "cover using network coding problem" (Expand search), "code using network coding problem" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa 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 using network coding problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder using network coding problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder using network coding problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder using network coding problem") OR ("api python python python programming"))*.