Perhaps you should try some spelling variations:
"coder decoder scheme group program" » "coder precoder scheme group program" (Expand search), "coder code scheme group program" (Expand search), "coder decoding schemes group program" (Expand search), "encoder decoder scheme group program" (Expand search), "coder decoder scheme up program" (Expand search), "coder decoder heme group program" (Expand search), "coder decoder school group program" (Expand search), "coder decoder cme group 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 scheme group program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder scheme group program\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder scheme group program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder scheme group program") OR ("api python python python programming"))*.