Perhaps you should try some spelling variations:
"coder computational complexity classes problem" » "code computational complexity classes problem" (Expand search), "poder computacional complexity classes problem" (Expand search), "model computational complexity classes problem" (Expand search), "coder computational complexity channel problem" (Expand search), "coder computational complexity based problem" (Expand search), "coder computational complexity cases problem" (Expand search), "coder computational complexity class problem" (Expand search), "coder computational complexity classic 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 computational complexity classes problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder computational complexity classes problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder computational complexity classes problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder computational complexity classes problem") OR ("api python python python programming"))*.