Perhaps you should try some spelling variations:
extraction method » extraction methods (Expand search)
motor functions » motor function (Expand search), motor dysfunction (Expand search)
and extraction » fluid extraction (Expand search)
functions and » function and (Expand search), functional and (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.

• Removing quotes may allow a broader search: (( motor functions and extraction method ) OR ( using codigo python python programming ))~.