Perhaps you should try some spelling variations:
commitment common » commitment on (Expand search), commitment among (Expand search), commitment human (Expand search)
common program » common problem (Expand search), common gram (Expand search), community program (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
solid python » logic python (Expand search), lib python (Expand search), solid method (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: (( models AND commitment common program ) OR ( using solid python python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( models and commitment common program ) OR ( using solid python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( models and commitment common program ) OR ( using solid python python programming ))*.