Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu van
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, xuc ban
cuu tre » cua tre, cau tren, cau treo
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
co hoi » co hoc, co loi
vi cuu » vi luu, vinh cuu
o hoi » o hoc, o hai, o hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky nang ((o hoi) or (co hoi)). ((hieu ve) or (hieu va)) cam xuc van hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang ((o hoi) OR (co hoi)). ((hieu ve) OR (hieu va)) cam xuc van hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: te san ky nang ((o hoi) or (co hoi)). ((hieu ve) or (hieu va)) cam xuc van hanh vi cuu tre*.