Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
dang xay » dang van, van xay
hieu va » lieu va, hieu qua
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cam tuc » cam xuc, cam tu, nam thuc
te sach » toc sach
hieu ve » hieu van
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
tuc va » thuc va, truc va, tuc xa

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) or (thu sach)) ky dang xay hoi. ((hieu ve) or (hieu va)) cam tuc va hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu sach)) ky dang xay hoi. ((hieu ve) OR (hieu va)) cam tuc va hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thu sach)) ky dang xay hoi. ((hieu ve) or (hieu va)) cam tuc va hanh vai cua triet*.