Perhaps you should try some spelling variations:
"coder zhang qi precoder program" » "coder zhang qi proder program" (Expand search), "coder zhang qi recovery program" (Expand search), "coder zhang qi precoce programa" (Expand search), "coder zhang to precoder program" (Expand search), "coder zhang mimo precoder program" (Expand search), "coder zhang and precoder program" (Expand search), "coder zhang lei precoder program" (Expand search), "coder zhang ke precoder program" (Expand search), "coder zhang l precoder program" (Expand search), "poder zhang qi prepoder program" (Expand search), "codes zhang qi precodes program" (Expand search), "coded zhang qi precoded 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 zhang qi precoder program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder zhang qi precoder program\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder zhang qi precoder program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder zhang qi precoder program") OR ("api python python python programming"))*.