Perhaps you should try some spelling variations:
vat dung » va dung, viet dung, mat duong
van dung » van dong, xay dung, tin dung
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu van
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
so sac » so sach, so dac
sac ky » cac ky, sai ky
co cua » con cua, ca cua, cong cua

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

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