Perhaps you should try some spelling variations:
efficient programming » efficient processing (Expand search), fragment programming (Expand search)
practical efficient » practical effect (Expand search), practice efficiency (Expand search), practical enforcement (Expand search)
coder practical » covert practical (Expand search), model practical (Expand search), poder practicas (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pytm python (Expand search)
coder coder » coder decoder (Expand search), code code (Expand search), decoder codec (Expand search)
in pitons » in pigeons (Expand search), in picos (Expand search), _ pitons (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( coder coder practical efficient programming ) OR ( in pitons python python programming ))~.