Perhaps you should try some spelling variations:
"coder coder the convexity problem" » "coder coder the convective problem" (Expand search), "coder coder the cavity problem" (Expand search), "coder coder the obesity problem" (Expand search), "coder coder the complexity problem" (Expand search), "coder coder star convexity problem" (Expand search), "coder coder the convent problem" (Expand search), "coder decoder the convexity problem" (Expand search), "code code the convexity problem" (Expand search), "decoder codec the convexity problem" (Expand search), "coder code the convexity problem" (Expand search), "coder cover the convexity problem" (Expand search), "coder poder the convexity 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 the convexity problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder the convexity problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder the convexity problem ) OR ( api python python python programming ))*.