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