Perhaps you should try some spelling variations:
"coder precoder character based program" » "coder reader character based program" (Expand search), "coder reader characters based program" (Expand search), "coder prior character based program" (Expand search), "coder precoder character and program" (Expand search), "coder precoder characteristic based program" (Expand search), "coder decoder character based 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 precoder character based program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder character based program\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder character based program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder character based program") OR ("api python python python programming"))*.