Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
lieu van » lieu va, hieu van, sieu van
hanh vai » hanh va, hanh tai, hanh van
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang ma » dang mau, dang mam, dang mat
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, dua tren
van am » van nam, van lam, van dam

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: toc sach ky dang ma hoa. lieu van am thuc va ((hanh vai) OR (hanh vi)) ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky dang ma hoa. lieu van am thuc va ((hanh vai) OR (hanh vi)) ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: toc sach ky dang ma hoa. lieu van am thuc va ((hanh vai) OR (hanh vi)) ((cua tre) or (cua triet))*.