Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh tai, hanh van
cuu tre » cua tre, cau tren, cau treo
hanh va » hang va, hanh vi
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
lai hoi » dai hoi, lai hoa, lai roi
mai hoi » mai khoi, dai hoi, mai doi
ky tang » ky nang, ky dang, kho tang
sai ky » sac ky
ve cam » ve cham, ve cac, va cam
tu sai » tu bai, tu san, tu cai

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

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