Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
hieu van » hieu va, thien van, lieu va
hanh tai » thanh tai, hang tai, han tai
hanh va » hang va, hanh vi
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
danh ma » anh ma, danh ca, hanh ma
ky danh » ky anh, ky dang
te san » te ban, ke san, tu san
te sac » te sach, te cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (te san)) ky danh ma hoa. hieu van nam thuc va ((hanh va) or (hanh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te san)) ky danh ma hoa. hieu van nam thuc va ((hanh va) OR (hanh tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te san)) ky danh ma hoa. hieu van nam thuc va ((hanh va) or (hanh tai)) cua tre*.