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