Perhaps you should try some spelling variations:
teaching learning » machine learning
transformer 1 » transformer _, transformed _
its teaching » lists teaching, views teaching, does teaching
vague ende » lage ende, vague de, value end
aguas del » aguas de, aguas do
ende its » ende des, made its
1 cao » 1 can, 1 ao, _ cao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( vague ende its teaching learning body ) OR ( aguas del _ transformer 1 cao ))~.
• Adding a wildcard symbol may retrieve word variants: (( vague ende its teaching learning body ) or ( aguas del _ transformer 1 cao ))*.