Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tham tuc » tham thuc, thai tuc, nham thuc
sach ty » sach tu, sach thu, xach tay
va hanh » va thanh, va danh, ban hanh
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
hang xa » hoang xa, hang va, hang ca
di cua » dai cua, doi cua, de cua
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 y)) hang xa hoi. hieu va tham tuc ((va hanh) OR (van hanh)) di cua te~.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach y)) hang xa hoi. hieu va tham tuc ((va hanh) or (van hanh)) di cua te*.