Perhaps you should try some spelling variations:
thuoc sai » thuoc tai, thuoc san, thuoc sach
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cao duc » dao duc, cao suc, tao duoc
cua tre » cua te, cuu tre, cua triet
sai ky » sac ky
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sai ky nang ma hoi. hieu va ((cao duc) or (giao duc)) ban thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sai ky nang ma hoi. hieu va ((cao duc) OR (giao duc)) ban thanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sai ky nang ma hoi. hieu va ((cao duc) or (giao duc)) ban thanh vi cua tre*.