Perhaps you should try some spelling variations:
commitment concurrent » commitment current (Expand search), commitment consent (Expand search), commitment commitment (Expand search)
concurrent program » concurrent programs (Expand search), concurrent programming (Expand search), concurrent pro (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
using codigo » using indigo (Expand search), using coding (Expand search), using codium (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: "(( modes AND commitment concurrent program ) OR ( using codigo python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( modes AND commitment concurrent program ) OR ( using codigo python python programming ))*.