Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh ket » thanh ke, hanh kem, thanh dat
dang xay » dang van, van xay
va thanh » gia thanh, ban thanh, va tinh
va trien » va truyen, va tuyen, va tieng
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
cao tuc » dao tuc, cao duc, cao suc
va cao » va cac, va co, va dao
tuc va » thuc va, truc va, tuc xa
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ky dang xay hoi. lieu va cao tuc va thanh ket ((va trien) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky dang xay hoi. lieu va cao tuc va thanh ket ((va trien) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky dang xay hoi. lieu va cao tuc va thanh ket ((va trien) or (va thiet))*.