Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thanh van » thanh san, thanh toan, thanh nhan
thu sach » tu sach, thuat sach, thuoc sach
cam thuc » am thuc, nam thuc, cam thu
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
sach ly » sach y, sach lo, sach ty
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
vang xa » mang xa, ang xa, dang xay
va cam » va cham, va cac, va cao

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

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