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