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