Perhaps you should try some spelling variations:
object programming » subject programming (Expand search), objective programming (Expand search), content programming (Expand search)
coder perfusion » modern perfusion (Expand search), under perfusion (Expand search), liver perfusion (Expand search)
perfusion and » perfusion in (Expand search)
using coating » using coatings (Expand search), using rotating (Expand search), using cutting (Expand search)
and object » an object (Expand search)
coating in » coatings in (Expand search), coating on (Expand search), coating and (Expand search)
in python » _ python (Expand search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( coder perfusion AND object programming ) OR ( using coating in python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder perfusion and object programming ) OR ( using coating in python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder perfusion and object programming ) OR ( using coating in python programming ))*.