Perhaps you should try some spelling variations:
extraction method » extraction methods (Expand search)
lower functional » low functional (Expand search), liver functional (Expand search), linear functional (Expand search)
functional brain » functional traits (Expand search), functional training (Expand search)
brain extraction » brazil extraction (Expand search), traits extraction (Expand search), green extraction (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: "(( lower functional brain extraction method ) OR ( using codigo python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( lower functional brain extraction method ) OR ( using codigo python python programming ))*.