Perhaps you should try some spelling variations:
ban hanh » ban hang
hanh hoi » hanh thoi, hanh noi, hanh hoa
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cam duc » cao duc, pham duc, nam duoc
hoi cua » hoi chuc
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa

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

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