Perhaps you should try some spelling variations:
control programs » control program (Expand search), control problems (Expand search), control problem (Expand search)
complex control » complete control (Expand search), complex central (Expand search), complexity control (Expand search)
coupling python » coupling protein (Expand search)
using coupling » running coupling (Expand search), using competing (Expand search), using coupled (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
tree complex » treat complex (Expand search), are complex (Expand search), large complex (Expand search)
coder tree » modern tree (Expand search), under tree (Expand search), poder tres (Expand search)

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

• Removing quotes may allow a broader search: (( coder tree complex control programs ) OR ( using coupling python python programming ))~.