Perhaps you should try some spelling variations:
"coder text complexity based program" » "coder text complexity and program" (Expand search), "coder text complexity beyond program" (Expand search), "coder text complexity index program" (Expand search), "cover text complexity based program" (Expand search), "modern text complexity based program" (Expand search), "der text complexity based program" (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 text complexity based program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder text complexity based program\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder text complexity based program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder text complexity based program") OR ("api python python python programming"))*.