Perhaps you should try some spelling variations:
ban hang » ngan hang
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
hai cua » thai cua, dai cua, hoi cua
cam duc » cam xuc, pham duc, nam duoc
cao duc » dao duc, cao suc, giao duc
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky

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 ky nang xa hoi. hieu va ((cam duc) or (cao duc)) ((ban hanh) OR (ban hang)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky nang xa hoi. hieu va ((cam duc) OR (cao duc)) ((ban hanh) OR (ban hang)) hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ky nang xa hoi. hieu va ((cam duc) or (cao duc)) ((ban hanh) OR (ban hang)) hai cua tre".
• Adding a wildcard symbol may retrieve word variants: su xac ky nang xa hoi. hieu va ((cam duc) or (cao duc)) ((ban hanh) OR (ban hang)) hai cua tre*.