Perhaps you should try some spelling variations:
vanh dai » van dai, vanh tai, lanh dao
cham tuc » nham thuc, pham thuc, tham thuc
te sach » toc sach
hieu va » lieu va, hieu qua
va vanh » va van, va danh, va hanh
su tien » su kien, su hien, tu tieng
hieu ve » hieu van
sang ma » tang ma, nang ma, sang tao
sach v » sach va, sach y, sach 2
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa
v sang » va sang, ve sang, _ sang
dai su » dai sua, dai so, dan su

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 v sang ma hoi. ((hieu ve) or (hieu va)) cham tuc va vanh dai su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v sang ma hoi. ((hieu ve) OR (hieu va)) cham tuc va vanh dai su tien.
• Adding a wildcard symbol may retrieve word variants: te sach v sang ma hoi. ((hieu ve) or (hieu va)) cham tuc va vanh dai su tien*.