Perhaps you should try some spelling variations:
"coder duration frequency precoder program" » "coder duration frequency recovery program" (Expand search), "coder duration frequency encoder program" (Expand search), "coder duration frequency procedure program" (Expand search), "coder duration frequency proder program" (Expand search), "coder duration frequency precoce programa" (Expand search), "power duration frequency precoder program" (Expand search), "order duration frequency precoder program" (Expand search), "longer duration frequency 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 duration frequency precoder program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder duration frequency precoder program\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder duration frequency precoder program ) OR ( api python python python programming ))*.