Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
sach ky » sac ky, sach y, sach ty
van cam » van nam, van lam, van cau
sang ma » tang ma, nang ma, sang tao
cua tre » cua te, cuu tre, cua triet
mac va » mac ca, tac va, ac va
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua

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: te sach ky ((nang x) OR (sang ma)) hoi. hieu van cam ((mac va) OR (tuc va)) hanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang x) or (sang ma)) hoi. hieu van cam ((mac va) or (tuc va)) hanh vi cua tre*.