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