Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van quan » van ban
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
quan so » quan su, quan ao, quan doi
va hanh » van hanh, va thanh, va danh
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
so va » so van, so vat, su va

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 lang xa hoi. hieu van quan so va hanh vi ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky lang xa hoi. hieu van quan so va hanh vi ((cuu tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: te san ky lang xa hoi. hieu van quan so va hanh vi ((cuu tre) or (cua tre))*.