Perhaps you should try some spelling variations:
integer programming » linear programming (Expand search)
decrease integer » decrease catheter (Expand search), decrease after (Expand search), decrease income (Expand search)
surface python » surface method (Expand search), surface path (Expand search), surface phonon (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)
the decrease » to decrease (Expand search), and decrease (Expand search)
land surface » and surface (Expand search)
python land » python and (Expand search), python usando (Expand search), python based (Expand search)

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

• Removing quotes may allow a broader search: (( decrease the decrease integer programming ) OR ( python land surface python programming ))~.