Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
van tuan » van quan, van ban, anh tuan
tuan hai » tuan khai, quan hai, tran hai
ve triet » va trien, su triet
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
ve cham » va cham, ve chat, vu cham
luc van » luoc van, luu van, duc van
ve cam » ve cac, va cam, ve cai
hai ve » hoai ve, hai va, hai vu

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: hoc sach ky tang xa hoi. hieu ((ve cam) OR (ve cham)) luc van tuan hai ve triet~.
• Adding a wildcard symbol may retrieve word variants: hoc sach ky tang xa hoi. hieu ((ve cam) or (ve cham)) luc van tuan hai ve triet*.