Perhaps you should try some spelling variations:
"using sensors using sio2 program" » "using sensor using sio2 program" (Expand search), "using sensors in sio2 program" (Expand search), "using sensors using 2 program" (Expand search), "using sensors using 2012 program" (Expand search), "using sensors using 2002 program" (Expand search), "using sensors using tio2 program" (Expand search), "using sensors using six program" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python 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 sensors using sio2 program\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( using sensors using sio2 program ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using sensors using sio2 program") OR ("using python python python programming"))*.