Perhaps you should try some spelling variations:
linear functions » linear function (Expand search), linear equations (Expand search)
detection method » detection methods (Expand search), selection methods (Expand search), extraction method (Expand search)
functions face » functions are (Expand search), functions case (Expand search), functions spaces (Expand search)
face detection » change detection (Expand search), damage detection (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: (( linear functions face detection method ) OR ( using codigo python python programming ))~.