Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ve triet » va trien, su triet
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
vuc van » duc van, luc van, thuc van
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
kem ve » ke ve

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 xang xa hoi. hieu ((ve cam) OR (ve cac)) vuc van hanh kem ve triet~.
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang xa hoi. hieu ((ve cam) or (ve cac)) vuc van hanh kem ve triet*.