Perhaps you should try some spelling variations:
truc van » truc va, thuc van, truc ban
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
tuc van » thuc van, tuc va, duc van
cua tuc » cua duc, cua thuoc, luat tuc
ve cam » ve cham, ve cac, va cam
cua tu » cua su, cua cu, cua te

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: te sach _ lang xa hoi. hieu ve cam ((tuc van) OR (truc van)) hanh vi ((cua tu) OR (cua tuc))~.
• Adding a wildcard symbol may retrieve word variants: te sach _ lang xa hoi. hieu ve cam ((tuc van) or (truc van)) hanh vi ((cua tu) or (cua tuc))*.