Perhaps you should try some spelling variations:
"advanced communications using linear programming" » "and communications using linear programming" (Expand search), "brand communications using linear programming" (Expand search), "broadband communications using linear programming" (Expand search), "advanced communications in linear programming" (Expand search), "advanced communications and linear programming" (Expand search), "advanced communications plan linear programming" (Expand search)
"using in python python programming" » "using in pythons python programming" (Expand search), "using in piton python programming" (Expand search), "using in pitons python programming" (Expand search), "using _ 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: (("advanced communications using linear programming") OR ("using in python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced communications using linear programming\") OR (\"using in python python programming\"))".
• Removing quotes may allow a broader search: (( advanced communications using linear programming ) OR ( using in python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("advanced communications using linear programming") OR ("using in python python programming"))*.