Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang hanh » dang thanh, ban hanh, dang van
nam thuc » nam thuoc, nam thu, nam tu
hanh vai » hanh vi, hanh va, hanh tai
lang ha » long ha
hieu ha » hieu hoa, hieu va, hieu ca
ky lang » ky nang, ky dang, ky tang
so sach » so sanh, bo sach, co sach
vai cua » dai cua, hai cua, lai cua
su sach » vu sach
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sach)) ky lang ha hoi. hieu ha ((nam thuc) OR (am thuc)) dang hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky lang ha hoi. hieu ha ((nam thuc) OR (am thuc)) dang hanh vai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) ky lang ha hoi. hieu ha ((nam thuc) OR (am thuc)) dang hanh vai cua triet*".