Perhaps you should try some spelling variations:
python semidefinite » on semidefinite (Expand search), the semidefinite (Expand search), to semidefinite (Expand search)
function python » function path (Expand search), function protein (Expand search), function plasmon (Expand search)
coder function » modern function (Expand search), power function (Expand search), over function (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
lib python » in python (Expand search), via python (Expand search), lines python (Expand search)
using lib » using lab (Expand search), using lid (Expand search), using li (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( coder function python semidefinite programming ) OR ( using lib python python programming ))~.