Perhaps you should try some spelling variations:
"using estimation algorithms application array" » "using estimation algorithm application array" (Expand search), "using optimization algorithms application array" (Expand search), "using optimization algorithm application array" (Expand search), "using detection algorithms application array" (Expand search), "using estimation algorithms application areas" (Expand search), "using estimation algorithms application spray" (Expand search), "using estimation algorithms application archi" (Expand search), "sensing estimation algorithms application array" (Expand search), "testing estimation algorithms application array" (Expand search), "rating estimation algorithms application array" (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: "((\"using estimation algorithms application array\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( using estimation algorithms application array ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using estimation algorithms application array") OR ("using coding python python programming"))*.