Perhaps you should try some spelling variations:
teaching python » learning python (Expand search), teaching path (Expand search), teaching paths (Expand search)
cdc complexity » code complexity (Expand search), lmc complexity (Expand search), case complexity (Expand search)
using teaching » nursing teaching (Expand search), during teaching (Expand search), desing teaching (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
code cdc » code cpc (Expand search), code ctn (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: "(( code cdc complexity control program ) OR ( using teaching python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( code cdc complexity control program ) OR ( using teaching python python programming ))*.