Perhaps you should try some spelling variations:
nang loi » nang noi, hang loi, tang loi
sach hay » sach han, sach ha, sach nay
canh tay » canh tac, thanh tay, anh ta
cac toc » cac toi, cac nuoc, cac thoi
va nang » van nang, da nang, cam nang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cac tuc » cac tu, cac tac, cac nuoc
loi va » loai va, hoi va, noi va
thiet » thieu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((canh tay) OR (sach hay)) lang xa hoi. hieu ve ((cac tuc) OR (cac toc)) va nang loi va thiet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((canh tay) or (sach hay)) lang xa hoi. hieu ve ((cac tuc) OR (cac toc)) va nang loi va thiet~".
• Adding a wildcard symbol may retrieve word variants: tu ((canh tay) or (sach hay)) lang xa hoi. hieu ve ((cac tuc) OR (cac toc)) va nang loi va thiet*.