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)
section using » selection using (Expand search), reaction using (Expand search), detection using (Expand search)
using pitons » using pion (Expand search), using pivots (Expand search), using mertons (Expand search)
decrease at » decrease akt (Expand search), decrease and (Expand search), decrease in (Expand search)
at decrease » rate decrease (Expand search), that decrease (Expand search), and decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease at decrease integer programming ) OR ( section using pitons python programming ))~.