Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
chau phu » chau phi, chau au, chau tho
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
da hanh » dao hanh, da thanh, dan hanh
cua tre » cua te, cuu tre, cua triet
phu da » phu la, phu ha
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: tu sach y ((nang x) OR (nang ma)) hoi. ((hieu van) OR (hieu va)) chau phu da hanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang x) or (nang ma)) hoi. ((hieu van) or (hieu va)) chau phu da hanh vi cua tre*.