Perhaps you should try some spelling variations:
transport based » transport asset, transport burden, transport travel
door transport » poor transport, dots transport, lower transport
based across » based access, shared across, varied across
our student » our students, your students, per student
ende door » ende der, one door
bis » bias
macro » micro

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: (( bis ende door transport based across ) OR ( us our student teacher _ (macao OR macro) ))~.
• Adding a wildcard symbol may retrieve word variants: (( bis ende door transport based across ) or ( us our student teacher _ (macao or macro) ))*.