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