Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
lang van » dang van, tang van, hoang van
hieu van » hieu va, thien van, lieu va
lam thuc » lam thuoc, am thuc, dam thuc
tu sach » thu sach, su sach, te sach
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
van hoi » van hoa, van hoc, van hoe
ly lang » ly hang, ly vang, le lang

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

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