Perhaps you should try some spelling variations:
dat duoc » dat nuoc, da duoc, luat duoc
tang tai » hang tai, dung tai, sang tao
bieu cua » dieu cua, hieu cua, ben cua
te sach » toc sach
cua tre » cua te, cua triet, dua tren
va danh » va dinh, va dan, va hanh
duoc va » nuoc va, duc va, duoc ma
sach ky » sac ky, sach y, sach ty
tai hoi » tai khoi, dai hoi, tai hai
ky tang » ky nang, ky dang, kho tang
cuu tre » cau tren, cau treo

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky tang tai hoi. ((hieu qua) or (bieu cua)) dat duoc va danh cho ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky tang tai hoi. ((hieu qua) OR (bieu cua)) dat duoc va danh cho ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky tang tai hoi. ((hieu qua) or (bieu cua)) dat duoc va danh cho ((cua tre) OR (cuu tre))*".