Perhaps you should try some spelling variations:
kho tang » cao tang
hieu van » hieu va, thien van, lieu va
cuu tre » cau tren, cau treo
va dang » van dang, va nang, va lang
cua tre » cua te, cua triet, dua tren
dang de » dang deo, dung de, dang do
cau xuc » cam xuc, cau luc, cau truc
van cau » van dau, van hau, van chat
van hoc » van hoa
xuc va » duc va, tuc va, luc va
vu sai » vu hai, vu san, vu dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sai ((kho tang) or (ky nang)) van hoc. hieu van cau xuc va dang de ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sai ((kho tang) OR (ky nang)) van hoc. hieu van cau xuc va dang de ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: vu sai ((kho tang) or (ky nang)) van hoc. hieu van cau xuc va dang de ((cua tre) or (cuu tre))*.