Perhaps you should try some spelling variations:
learners training » teachers training, farmers training, learning training
training based » tracking based, training case, training basics
rot transport » road transport, dots transport, crop transport
based tasks » based task, based tests, basic tasks
transport b » transport _, transport a, transport 4
bias der » bias des, bias over, das der
der rot » der brot, der rote, der rat
b ao » b a, 3 ao, _ ao
slow » low, show, flow

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: (( (aguas OR agua) slow learners training based tasks ) OR ( bias der rot transport b ao ))~.
• Adding a wildcard symbol may retrieve word variants: (( (aguas or agua) slow learners training based tasks ) or ( bias der rot transport b ao ))*.