Perhaps you should try some spelling variations:
"coder coder string halting problem" » "coder coder string routing problem" (Expand search), "coder coder string packing problem" (Expand search), "coder coder string cutting problem" (Expand search), "coder coder during salting problem" (Expand search), "coder coder string editing problem" (Expand search), "coder cordel string halting problem" (Expand search), "coder closed string halting problem" (Expand search), "coder modelo string halting problem" (Expand search), "coder decoder string halting problem" (Expand search), "code code string halting problem" (Expand search), "decoder codec string halting 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 string halting problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder string halting problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder string halting problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder string halting problem") OR ("api python python python programming"))*.