Perhaps you should try some spelling variations:
"coder decoder _ basic program" » "encoder decoder _ basic program" (Expand search), "coder decoder _ basic programa" (Expand search), "coder decoder _ basico programa" (Expand search), "coder decoder _ basica programa" (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 _ basic program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder _ basic program\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder _ basic program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder _ basic program") OR ("api python python python programming"))*.