Perhaps you should try some spelling variations:
"coder coder complex theory problem" » "coder coder complexity theory problem" (Expand search), "coder coder complex the problem" (Expand search), "coder coder complex theory problems" (Expand search), "coder coder complex theory program" (Expand search), "coder copper complex theory problem" (Expand search), "coder modern complex theory problem" (Expand search), "coder holder complex theory problem" (Expand search), "coder decoder complex theory problem" (Expand search), "code code complex theory problem" (Expand search), "decoder codec complex theory 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 complex theory problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder complex theory problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder complex theory problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder complex theory problem") OR ("api python python python programming"))*.