Perhaps you should try some spelling variations:
projection methods » projection method (Expand search), production methods (Expand search), projective methods (Expand search)
based projection » based protection (Expand search), based production (Expand search), laser projection (Expand search)
floor functions » floor function (Expand search), floor dysfunctions (Expand search), flour functional (Expand search)
functions based » function based (Expand search), functions case (Expand search), functions used (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: "(( floor functions based projection methods ) OR ( using codigo python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( floor functions based projection methods ) OR ( using codigo python python programming ))*.