Perhaps you should try some spelling variations:
vat dung » van dung, va dung, viet dung
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
dung co » dung cho, dung cong, dung cua
hieu ve » hieu va
dang ha » dong ha, dung ha, lang ha
ha hoi » hoa hoi, ha noi, xa hoi
sac ky » cac ky
nam tu » nam thu, nam thuc
tu vat » tu va, tu van, tu bat
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) or (sai ky)) dang ha hoi. ((hieu ve) OR (hieu van)) nam tu vat dung co cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sac ky) OR (sai ky)) dang ha hoi. ((hieu ve) OR (hieu van)) nam tu vat dung co cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sac ky) or (sai ky)) dang ha hoi. ((hieu ve) OR (hieu van)) nam tu vat dung co cua tre*".