Perhaps you should try some spelling variations:
ban quan » van quan
sach kem » hanh kem
dang xay » dang van, van xay
ban dan » ban hang, ban hanh, gian dan
hieu va » lieu va, hieu qua
xay hoi » xa hoi, tay hoi, cay phoi
cua tre » cua te, cuu tre, cua triet
ca cua » co cua
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
va ca » va cac, va cao, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach kem) or (sac ky)) dang xay hoi. hieu va ca cua ((ban dan) or (ban quan)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sac ky)) dang xay hoi. hieu va ca cua ((ban dan) OR (ban quan)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sac ky)) dang xay hoi. hieu va ca cua ((ban dan) or (ban quan)) vi cua tre*.