Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
dang mau » dong mau, dang van, dang su
hanh tai » thanh tai, hang tai, hinh tai
thuc va » thuc vat, thuc dan, thuc day
han tai » hang tai, nhan tai, van tai
duc tre » duoc tren, duc tien
hieu ve » hieu va, hieu van
mau hoi » cau hoi, mai hoi, mau ho
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
ve nam » he nam, va nam, le nam
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky dang mau hoi. hieu ve nam thuc va ((hanh tai) or (han tai)) duc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang mau hoi. hieu ve nam thuc va ((hanh tai) OR (han tai)) duc tre.
• Adding a wildcard symbol may retrieve word variants: su sac ky dang mau hoi. hieu ve nam thuc va ((hanh tai) or (han tai)) duc tre*.