Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
ky tang » ky nang, kho tang, ky trong
ky dang » ky nang, ky danh
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
tu sach » thu sach, su sach, tu cach
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa

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