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