Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
nam thuc » nam thuoc, am thuc, nam thu
dang van » hoang van, hang va
hanh hai » nhanh hai, hang hai, hanh tai
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
hieu ly » hieu ky, lieu ly, dieu ly
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky ((nang xa) or (dang van)) hoi. hieu ly nam thuc va ((hanh hai) or (thanh hai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang xa) OR (dang van)) hoi. hieu ly nam thuc va ((hanh hai) OR (thanh hai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang xa) or (dang van)) hoi. hieu ly nam thuc va ((hanh hai) or (thanh hai)) cua tre*.