Perhaps you should try some spelling variations:
complement control » implement control (Expand search), complete control (Expand search), compliant control (Expand search)
control programs » control program (Expand search), control problems (Expand search)
and complement » and complementary (Expand search), and commitment (Expand search), of complement (Expand search)
testing method » testing methods (Expand search), costing method (Expand search), casting method (Expand search)
using testing » using resting (Expand search), using nesting (Expand search), ring testing (Expand search)
method python » method method (Expand search), python python (Expand search)
coder and » code and (Expand search), codes and (Expand search), poder and (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 AND complement control programs ) OR ( using testing method python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder and complement control programs ) OR ( using testing method python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder and complement control programs ) OR ( using testing method python programming ))*.