Perhaps you should try some spelling variations:
case complexity » the complexity (Expand search), and complexity (Expand search)
rotation method » rotation methods (Expand search), rotations method (Expand search), rotational method (Expand search)
using rotation » using rotational (Expand search), using rotating (Expand search), using mutation (Expand search)
method python » method method (Expand search), python python (Expand search)
coder case » border case (Expand search), power case (Expand search), lower case (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 case complexity control program ) OR ( using rotation method python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder case complexity control program ) OR ( using rotation method python programming ))*.