Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
thuc va » thuc vat, thuc dan, thuc day
danh di » danh du, xanh di, danh dien
danh vi » hanh vi, dinh vi, danh va
cuu tre » cua tre, cau tren, cau treo
sach ly » sach y, sach lo, sach ty
truc va » thuc vat, trung va
lang ha » long ha
ly lang » ly hang, ly vang, le lang
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ly lang ha hoi. hieu van nam ((truc va) or (thuc va)) ((danh vi) OR (danh di)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly lang ha hoi. hieu van nam ((truc va) OR (thuc va)) ((danh vi) OR (danh di)) cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly lang ha hoi. hieu van nam ((truc va) or (thuc va)) ((danh vi) OR (danh di)) cuu tre*".