Perhaps you should try some spelling variations:
danh dien » dinh dien, danh kien, danh lien
cam thuc » am thuc, nam thuc, cam thu
hieu van » hieu va, thien van, lieu va
thuc va » thuc vat, thuc dan, thuc day
danh di » danh du, xanh di, danh gia
cuu tre » cua tre, cau tren, cau treo
van cam » van nam, van lam, van cau
sac ky » cac ky, sai ky
vu sac » vu sach, vu san, va sac
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang ((x hoi) or (xa hoi)). hieu van cam thuc va ((danh di) or (danh dien)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ((x hoi) OR (xa hoi)). hieu van cam thuc va ((danh di) OR (danh dien)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang ((x hoi) or (xa hoi)). hieu van cam thuc va ((danh di) or (danh dien)) cuu tre*.