Perhaps you should try some spelling variations:
"by computational testing concurrent program" » "by compositional testing concurrent program" (Expand search), "by computational tests concurrent program" (Expand search), "by computational tinking concurrent program" (Expand search), "by computational test concurrent program" (Expand search), "by computational testing current program" (Expand search), "by computational during concurrent program" (Expand search), "by computational testing concurrent programs" (Expand search), "by computational testing concurrent programming" (Expand search), "_ computational testing concurrent program" (Expand search), "and computational testing concurrent program" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking python 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: "((\"by computational testing concurrent program\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( by computational testing concurrent program ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("by computational testing concurrent program") OR ("using coding python python programming"))*.