Perhaps you should try some spelling variations:
potential control » potential biocontrol (Expand search)
rotating method » rotations method (Expand search), coating method (Expand search), rating method (Expand search)
using rotating » in rotating (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 potential control program ) OR ( using rotating method python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder and potential control program ) OR ( using rotating method python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder and potential control program ) OR ( using rotating method python programming ))*.