Perhaps you should try some spelling variations:
"coder huang chao precoder program" » "coder huang chao proder program" (Expand search), "coder huang chao recovery program" (Expand search), "coder huang chao precoce programa" (Expand search), "coder huang mimo precoder program" (Expand search), "coder huang to precoder program" (Expand search), "poder humano chao precoder program" (Expand search), "coder huang han 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 huang chao precoder program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder huang chao precoder program\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder huang chao precoder program ) OR ( api python python python programming ))*.