Perhaps you should try some spelling variations:
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
cam tuc » cam xuc, cam tu, nam thuc
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va
nang xa » nang x, lang xa, nang ma
sach tu » sach thu, cach tu, sach ty
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de 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 y) OR (sach tu)) nang xa hoi. ((hieu va) OR (hieu qua)) cam tuc va hanh di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach y) or (sach tu)) nang xa hoi. ((hieu va) OR (hieu qua)) cam tuc va hanh di cua tre~".
• Adding a wildcard symbol may retrieve word variants: te ((sach y) or (sach tu)) nang xa hoi. ((hieu va) OR (hieu qua)) cam tuc va hanh di cua tre*.