Perhaps you should try some spelling variations:
discourse difference » discourse inference (Expand search), discourse reference (Expand search), discourse coherence (Expand search)
difference program » different program (Expand search), conference program (Expand search), different programs (Expand search)
std discourse » and discourse (Expand search), old discourse (Expand search), ad discourse (Expand search)
python module » python code (Expand search)
module lambda » modelo lambda (Expand search)
decrease std » decrease sod (Expand search), decrease and (Expand search), decrease at (Expand search)

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

• Removing quotes may allow a broader search: (( decrease std discourse difference program ) OR ( python module lambda python programming ))~.