Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh dau » lanh dao, hang dau, danh tu
cham tuc » nham thuc, pham thuc, tham thuc
cua tre » cua te, cuu tre, dua tren
va danh » va dinh, va dan, va hanh
te sach » toc sach
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ve cham » va cham, ve chat, vu cham
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa
ma hoi » xa hoi, ma hoa, me hoi

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 y nang ((ma hoi) OR (mai hoi)). hieu ve cham tuc va danh dau ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((ma hoi) OR (mai hoi)). hieu ve cham tuc va danh dau ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((ma hoi) OR (mai hoi)). hieu ve cham tuc va danh dau ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((ma hoi) OR (mai hoi)). hieu ve cham tuc va danh dau ((cua tre) or (cua triet))*.