Perhaps you should try some spelling variations:
"coder and complexity string problem" » "coder and complexity strong problem" (Expand search), "coder and complexity during problem" (Expand search), "coder and complexity scaling problem" (Expand search), "coder and complexity sizing problem" (Expand search), "coder and complexity rostering problem" (Expand search), "coder and complexity sharing problems" (Expand search), "code and complexity string problem" (Expand search), "codes and complexity string problem" (Expand search), "poder and complexity string 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and complexity string problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder and complexity string problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder and complexity string problem") OR ("api python python python programming"))*.