Perhaps you should try some spelling variations:
cham cuc » cham cuu, pham cuc, pham chuc
ban hanh » ban hang
hieu ve » hieu van
hieu va » lieu va, hieu qua
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, cua triet
co hoi » co hoc, co loi
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: tu cac ky nang ((co hoi) or (x ho)). ((hieu ve) or (hieu va)) cham cuc ban hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((co hoi) OR (x ho)). ((hieu ve) OR (hieu va)) cham cuc ban hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((co hoi) or (x ho)). ((hieu ve) or (hieu va)) cham cuc ban hanh vi cua tre*.