Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
danh dai » danh dau, danh di, danh sai
cham tuc » nham thuc, pham thuc, tham thuc
hieu ve » hieu va
va danh » va dinh, va dan, va hanh
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
te sach » toc sach
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
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 y nang ma hoi. ((hieu ve) OR (hieu van)) cham tuc va danh dai ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. ((hieu ve) OR (hieu van)) cham tuc va danh dai ((cua tre) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoi. ((hieu ve) OR (hieu van)) cham tuc va danh dai ((cua tre) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. ((hieu ve) OR (hieu van)) cham tuc va danh dai ((cua tre) or (su triet))*.