Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
dung mat » duong mat, dung dat, dung may
va thanh » gia thanh, ban thanh, va tinh
cham luc » cham soc, nhan luc, cham cuu
te sach » toc sach
cuc tre » duc tre, cuu tre, cuc thue
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
hieu ve » hieu van
mat hoi » mai hoi, sat hoi, mat troi
ky dung » ly dung, ky dang, ky vung
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va

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 dung mat hoi. ((hieu ve) or (hieu va)) cham luc va thanh tai ((cuc tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dung mat hoi. ((hieu ve) OR (hieu va)) cham luc va thanh tai ((cuc tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: te sach ky dung mat hoi. ((hieu ve) or (hieu va)) cham luc va thanh tai ((cuc tre) or (cua tre))*.