Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
ban thanh » ban hanh, ban hang
xach tay » canh tay
thuc ban » thuoc ban, thuc dan, thu ban
cam thuc » am thuc, nam thuc, cam thu
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
hieu va » hieu qua
nang xa » nang x, lang xa, nang ma
sach tu » sach thu, cach tu, sach ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((xach tay) or (sach tu)) nang xa hoi. ((hieu va) OR (lieu va)) cam thuc ban thanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((xach tay) OR (sach tu)) nang xa hoi. ((hieu va) OR (lieu va)) cam thuc ban thanh doi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((xach tay) or (sach tu)) nang xa hoi. ((hieu va) OR (lieu va)) cam thuc ban thanh doi cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((xach tay) or (sach tu)) nang xa hoi. ((hieu va) OR (lieu va)) cam thuc ban thanh doi cua tre*.