Perhaps you should try some spelling variations:
line programming » linear programming (Expand search), cone programming (Expand search), linear programmin (Expand search)
coder perfusion » modern perfusion (Expand search), under perfusion (Expand search), liver perfusion (Expand search)
using cutting » turning cutting (Expand search), using rotating (Expand search), using resting (Expand search)
imaging line » imaging cine (Expand search), imaging cone (Expand search), imaging bone (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: "(( coder perfusion imaging line programming ) OR ( using cutting _ python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder perfusion imaging line programming ) OR ( using cutting _ python programming ))*.