Perhaps you should try some spelling variations:
"coder coder computational mathematical problem" » "coder coder computational mathematics problem" (Expand search), "coder coder computacional mathematica problem" (Expand search), "coder coder computacional mathematic problem" (Expand search), "coder code computational mathematical problem" (Expand search), "coder poder computacional mathematical problem" (Expand search), "coder model computational mathematical problem" (Expand search), "coder decoder computational mathematical problem" (Expand search), "code code computational mathematical problem" (Expand search), "decoder codec computational mathematical 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 computational mathematical problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder computational mathematical problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder computational mathematical problem ) OR ( api python python python programming ))*.