Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
lang van » dang van, tang van, hoang van
chua tre » chua tri, chua trieu, cho tre
van hoi » van hoa, van hoc, van hoe
hieu va » lieu va, hieu qua
va nham » va cham, va tham, va nha
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
o lang » hoa lang, hoi lang

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 o lang van hoi. hieu va nham thuc va danh va ((chua tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac o lang van hoi. hieu va nham thuc va danh va ((chua tre) OR (cua tre))*.