Perhaps you should try some spelling variations:
vat dung » van dung, viet dung, mat duong
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va dung » van dung, va duong, va ung
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
so sac » so sach, so dac
sac ky » cac ky, sai ky
ve nam » he nam, va nam, le nam
nam tu » nam thu, nam thuc

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky nang xa hoi. hieu ve nam tu ((va dung) OR (vat dung)) co ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sac ky nang xa hoi. hieu ve nam tu ((va dung) OR (vat dung)) co ((cua tre) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: so sac ky nang xa hoi. hieu ve nam tu ((va dung) OR (vat dung)) co ((cua tre) or (cuu tre))*.