Perhaps you should try some spelling variations:
thanh thai » thanh hai, thanh tai, nhanh thai
ban thanh » ban hanh, ban hang
thai cua » than cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
cam duc » cao duc, pham duc, nam duoc
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
su xac » pu xac
ma hoi » mai hoi, xa hoi, ma hoa
su cac » tu cac, su cao, su can

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su xac) or (su cac)) ky tang ma hoi. hieu ve ((cam duc) or (cam xuc)) ban thanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su xac) OR (su cac)) ky tang ma hoi. hieu ve ((cam duc) OR (cam xuc)) ban thanh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su xac) or (su cac)) ky tang ma hoi. hieu ve ((cam duc) or (cam xuc)) ban thanh thai cua tre*.