Perhaps you should try some spelling variations:
presentations python » presentations on (Expand search), presentation myth (Expand search), presentations that (Expand search)
based presentations » based representations (Expand search), case presentations (Expand search), cases presentations (Expand search)
coder decoder » encoder decoder (Expand search), video decoder (Expand search)
python coding » action coding (Expand search), python code (Expand search)
coding python » codigo python (Expand search), codigos python (Expand search), using python (Expand search)
python based » action based (Expand search)

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

• Removing quotes may allow a broader search: (( coder decoder python coding python ) OR ( python based presentations python programming ))~.