Perhaps you should try some spelling variations:
"coder computational complexity model problem" » "code computational complexity model problem" (Expand search), "poder computacional complexity model problem" (Expand search), "model computational complexity model problem" (Expand search), "coder computational complexity and problem" (Expand search), "coder computational complexity based problem" (Expand search), "coder computational complexity model problems" (Expand search), "coder computational complexity moral problem" (Expand search), "coder computational complexity model probe" (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 computational complexity model problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder computational complexity model problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder computational complexity model problem") OR ("api python python python programming"))*.