Perhaps you should try some spelling variations:
extraction method » extraction methods (Expand search)
coder relations » border relations (Expand search), power relations (Expand search), over relations (Expand search)
wave extraction » name extraction (Expand search), cane extraction (Expand search), case extraction (Expand search)
relations wave » relations water (Expand search), relations avec (Expand search), relations late (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: "(( coder relations wave extraction method ) OR ( using codigo python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder relations wave extraction method ) OR ( using codigo python python programming ))*.