Perhaps you should try some spelling variations:
nang lai » nang tai, mang lai, nang cai
hieu su » hieu sau, tieu su, hieu so
te sach » toc sach
lai hoi » dai hoi, lai hoa, lai roi
su chao » su cao, sau chan
xu van » tu van, vu van, su van
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
cua te » cua tu
xu va » tu va, su va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (te sach)) ky nang lai hoi. hieu su chao ((xu va) or (xu van)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (te sach)) ky nang lai hoi. hieu su chao ((xu va) OR (xu van)) hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (te sach)) ky nang lai hoi. hieu su chao ((xu va) or (xu van)) hanh vi cua te*.