Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
van hanh » van thanh, ban hanh, van anh
sach tu » sach thu, cach tu, sach uu
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach thu, xach tay
loc van » luoc van, hoc van, lo van
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
cua te » cua tu

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: tu ((sach ty) OR (sach tu)) lang xa hoi. hieu ((ve cam) OR (ve cac)) loc van hanh dai cua te~.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach tu)) lang xa hoi. hieu ((ve cam) or (ve cac)) loc van hanh dai cua te*.