Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh lai » thanh hai, thanh lap, thanh loi
than luc » nhan luc, than duc, thanh luu
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va than » va thanh, van than, va phan
luc van » luoc van, luu van, duc van
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ma hoi » xa hoi, ma hoa, me hoi

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 nang ((ma hoi) or (mai hoi)). hieu va than luc van thanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ((ma hoi) OR (mai hoi)). hieu va than luc van thanh lai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ((ma hoi) or (mai hoi)). hieu va than luc van thanh lai cua tre*.