Perhaps you should try some spelling variations:
danh dai » danh dau, danh di, danh sai
dam thuc » am thuc, dan thuc, nam thuc
dai cuu » dai cua, dai huu
va danh » va dinh, va dan, va hanh
sach ty » sach y, sach thu, xach tay
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sach tu » sach thu, cach tu, sach uu
cuu tre » cua tre, cau tren, cau treo
nam tu » nam thu, nam thuc

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 ty) OR (sach tu)) nang xa hoi. hieu ve ((dam thuc) OR (nam tu)) va danh dai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach tu)) nang xa hoi. hieu ve ((dam thuc) or (nam tu)) va danh dai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) OR (sach tu)) nang xa hoi. hieu ve ((dam thuc) or (nam tu)) va danh dai cuu tre*.