Perhaps you should try some spelling variations:
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
and coverage » and cover (Expand search)
coder coder » coder decoder (Expand search), code code (Expand search), decoder codec (Expand search)
coder model » cover model (Expand search), decoder model (Expand search), copper model (Expand search)
model and » modeling 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 coder model AND coverage ) OR ( _ python python python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder coder model and coverage ) OR ( _ python python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder coder model and coverage ) OR ( _ python python python programming ))*.