Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach kho » bach khoa, sach dao, sach nha
kho tang » cao tang
hanh vai » hanh vi, hanh va, hanh tai
cua tre » cua te, cuu tre, dua tren
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
tang xa » trang xa, tang ma, lang xa
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac

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: tu sach kho tang xa hoi. hieu ((ve cam) OR (ve cac)) tuc va hanh vai ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach kho tang xa hoi. hieu ((ve cam) or (ve cac)) tuc va hanh vai ((cua tre) OR (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: tu sach kho tang xa hoi. hieu ((ve cam) or (ve cac)) tuc va hanh vai ((cua tre) OR (cua triet))*.