Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
ky mang » ky nang, ke mang, ky dang
su chao » su cao, sau chan
hieu su » hieu sau, tieu su, hieu so
lai hoi » dai hoi, lai hoa, mai hoi
lai roi » loi roi
cua te » cua tu
xu va » xu van, tu va, su va

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 cac ky mang ((lai roi) OR (lai hoi)). hieu su chao xu va ((hanh vai) OR (hanh tai)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky mang ((lai roi) OR (lai hoi)). hieu su chao xu va ((hanh vai) or (hanh tai)) cua te~".
• Adding a wildcard symbol may retrieve word variants: tu cac ky mang ((lai roi) OR (lai hoi)). hieu su chao xu va ((hanh vai) or (hanh tai)) cua te*.