Perhaps you should try some spelling variations:
cancer programming » dance programming (Expand search), cone programming (Expand search), convex programming (Expand search)
decrease cancer » decreases cancer (Expand search), decrease after (Expand search), disease cancer (Expand search)
proton python » piton python (Expand search), proton proton (Expand search), pitons python (Expand search)
python based » action based (Expand search)
based proton » based protein (Expand search), based protocol (Expand search), based production (Expand search)

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

• Removing quotes may allow a broader search: (( decrease _ decrease cancer programming ) OR ( python based proton python programming ))~.