Perhaps you should try some spelling variations:
"by computational tests concurrent program" » "by computacional testes concurrent program" (Expand search), "by computacional teses concurrent program" (Expand search), "by computation tests concurrent program" (Expand search), "by computational tests concurrent programs" (Expand search), "by computational tests concurrent programming" (Expand search), "_ computational tests concurrent program" (Expand search), "and computational tests concurrent program" (Expand search), "by computational test concurrent program" (Expand search), "by computational testing concurrent program" (Expand search), "by computational testes concorrentes 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 tests concurrent program\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( by computational tests concurrent program ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("by computational tests concurrent program") OR ("using coding python python programming"))*.