Perhaps you should try some spelling variations:
"coder coder task walking problem" » "coder coder task walking problems" (Expand search), "coder coder task packing problem" (Expand search), "coder coder task halting problem" (Expand search), "coder coder track walking problem" (Expand search), "coder coder fast walking problem" (Expand search), "coder coder based walking problem" (Expand search), "coder decoder task walking problem" (Expand search), "code code task walking problem" (Expand search), "decoder codec task walking problem" (Expand search), "coder model task walking problem" (Expand search), "coder under task walking 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 coder task walking problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder task walking problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder task walking problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder task walking problem") OR ("api python python python programming"))*.