Perhaps you should try some spelling variations:
"coder precoder scheme subgroups programming" » "coder precoder discrete subgroups programming" (Expand search), "coder precoder free subgroups programming" (Expand search), "coder precoder income subgroups programming" (Expand search), "coder precoding scheme subgroups programming" (Expand search), "coder decoder scheme subgroups programming" (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 precoder scheme subgroups programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder scheme subgroups programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder scheme subgroups programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder scheme subgroups programming") OR ("api python python python programming"))*.