Perhaps you should try some spelling variations:
case complexity » the complexity (Expand search), and complexity (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
using python » usando python (Expand search), in python (Expand search)
using using » housing using (Expand search), aging using (Expand search), ring using (Expand search)
code case » mode case (Expand search), node case (Expand search), code based (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( code case complexity control program ) OR ( using using python python programming ))~.