Perhaps you should try some spelling variations:
chat thuc » thuat thuc, nhan thuc, chat thai
hieu cao » chieu cao, hieu cac, hieu ca
thuc day » thuc dan, thuc vat
thu san » thuy san, thu ban, phu san
nang xa » nang x, lang xa, nang ma
day don » day dong, day con, day dan
don vai » don vi, don va, den vai
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu san ky ((nang xa) or (mang may)) hoi. hieu cao chat thuc day don vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu san ky ((nang xa) OR (mang may)) hoi. hieu cao chat thuc day don vai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu san ky ((nang xa) or (mang may)) hoi. hieu cao chat thuc day don vai cua tre*.