Perhaps you should try some spelling variations:
"coder _ parameterized coding problems" » "coder _ parameterized codes problems" (Expand search), "coder _ parameterized using problems" (Expand search), "coder _ parameterized couplings problems" (Expand search), "coder _ parameterized loading problems" (Expand search), "coder _ parameterized counting problems" (Expand search), "coder _ parameterized covering problems" (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 _ parameterized coding problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ parameterized coding problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ parameterized coding problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ parameterized coding problems") OR ("api python python python programming"))*.