Perhaps you should try some spelling variations:
doanh doi » doanh moi, doanh duoc, doanh tai
hang tai » hang va, dung tai
hieu van » hieu va, thien van, lieu va
so sanh » do sanh
sanh ky » hanh ky, sang ky, nganh ky
ky hang » ky nang, ly hang, ky dang
tai hoi » tai khoi, dai hoi, tai hai
van cau » van dau, van hau, van chat
tuc cac » tich cac
doi cua » dai cua, hoi cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky hang tai hoi. hieu van cau ((tuc cac) OR (tu cac)) doanh doi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky hang tai hoi. hieu van cau ((tuc cac) OR (tu cac)) doanh doi cua te".
• Adding a wildcard symbol may retrieve word variants: so sanh ky hang tai hoi. hieu van cau ((tuc cac) OR (tu cac)) doanh doi cua te*.