Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu sach
mang xa » lang xa, mang may, dang xay
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
va hanh » van hanh, va thanh, va danh
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu

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: su sach y ((((mang xa) OR (nang ma))) OR (nang x)) hoi. hieu va cac tuc va hanh dai cua tu~.
• Adding a wildcard symbol may retrieve word variants: su sach y ((((mang xa) or (nang ma))) or (nang x)) hoi. hieu va cac tuc va hanh dai cua tu*.