Perhaps you should try some spelling variations:
"coder efficient _ precoder program" » "coder efficient _ proder program" (Expand search), "coder efficient _ recovery program" (Expand search), "coder efficient _ precoce programa" (Expand search), "power efficient _ precoder program" (Expand search), "codec efficiency _ precoder program" (Expand search), "codes efficiency _ precoder 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)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder efficient _ precoder program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder efficient _ precoder program\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder efficient _ precoder program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder efficient _ precoder program") OR ("api python python python programming"))*.