Perhaps you should try some spelling variations:
hang vai » hang tai, hang hai, hang vi
cuu tre » cua tre, cau tren, cau treo
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
mai doi » moi doi, mai hoi, mai khoi
lai hoi » dai hoi, lai hoa, lai roi
ky tang » ky nang, ky dang, kho tang
bai ky » ban ky, sai ky, bac ky
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
tu bai » tu ban, tu bat, te bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu bai ky tang ((mai doi) or (lai hoi)). hieu ve cac xuc va ((hang vai) or (hang va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ky tang ((mai doi) OR (lai hoi)). hieu ve cac xuc va ((hang vai) OR (hang va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu bai ky tang ((mai doi) or (lai hoi)). hieu ve cac xuc va ((hang vai) or (hang va)) cuu tre*.