Perhaps you should try some spelling variations:
"coder linear precoding shell script" » "coder linear precoding scheme script" (Expand search), "code linear precoding shell script" (Expand search), "order linear precoding shell script" (Expand search), "model linear precoding shell script" (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 linear precoding shell script") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder linear precoding shell script\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder linear precoding shell script ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder linear precoding shell script") OR ("api python python python programming"))*.