Perhaps you should try some spelling variations:
"coder classification and coding problem" » "cover classification and coding problem" (Expand search), "codes classification and coding problem" (Expand search), "cover classifications and coding problem" (Expand search), "coder classification and coding problems" (Expand search), "coder classification and coping problem" (Expand search), "coder classification and loading problem" (Expand search), "coder classification and cooling problem" (Expand search), "coder classification and cooking 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 classification and coding problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder classification and coding problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder classification and coding problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder classification and coding problem") OR ("api python python python programming"))*.