Perhaps you should try some spelling variations:
"using computational using convex programming" » "and computational using convex programming" (Expand search), "using computation using convex programming" (Expand search), "using computations using convex programming" (Expand search), "using computacional usinas convex programming" (Expand search), "using computational using cone programming" (Expand search), "using computational using computer programming" (Expand search), "using computational using context programming" (Expand search), "using computational using complex programming" (Expand search)
"using nodes from python programming" » "using anodes from python programming" (Expand search), "using nades from python programming" (Expand search), "using node from python programming" (Expand search), "using nodes from pathogen programming" (Expand search), "using nodes from anthony programming" (Expand search), "using codes from python programming" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational using convex programming\") OR (\"using nodes from python programming\"))~".
• Removing quotes may allow a broader search: (( using computational using convex programming ) OR ( using nodes from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computational using convex programming") OR ("using nodes from python programming"))*.