Perhaps you should try some spelling variations:
"coder _ precoding algorithm based" » "coder _ decoding algorithm based" (Expand search), "coder _ decoding algorithms based" (Expand search), "coder _ coding algorithm based" (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 _ precoding algorithm based") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ precoding algorithm based\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ precoding algorithm based ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ precoding algorithm based") OR ("api python python python programming"))*.