Perhaps you should try some spelling variations:
"coder decoder objects oriented problems" » "coder decoder objects oriented problem" (Expand search), "coder decoder objects oriented programs" (Expand search), "coder decoder objects oriented process" (Expand search), "coder decoder object oriented problems" (Expand search), "coder decoder objectives oriented problems" (Expand search), "coder decoder object orientated problems" (Expand search), "encoder decoder objects oriented 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 decoder objects oriented problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder objects oriented problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder objects oriented problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder objects oriented problems") OR ("api python python python programming"))*.