Perhaps you should try some spelling variations:
"coder decoder its complexity problem" » "coder decoder its complex problem" (Expand search), "coder decoder its completion problem" (Expand search), "coder decoder its convexity problem" (Expand search), "coder decoder case complexity problem" (Expand search), "coder decoder data complexity problem" (Expand search), "coder decoder and complexity problem" (Expand search), "encoder decoder its complexity problem" (Expand search), "coder decoder in complexity problem" (Expand search), "coder defender its complexity 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 decoder its complexity problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder its complexity problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder its complexity problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder its complexity problem") OR ("api python python python programming"))*.