Perhaps you should try some spelling variations:
"coder precoder samples linear programming" » "coder code samples linear programming" (Expand search), "coder prepare samples linear programming" (Expand search), "coder cover samples linear programming" (Expand search), "coder decoder samples linear programming" (Expand search), "coder precoder ensembles linear programming" (Expand search), "coder precoder samples clinical programming" (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)

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

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