Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
hieu van » hieu va, thien van, lieu va
thuoc va » thuc va, thuoc ma, thuong va
sach ky » sac ky, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
van lam » van nam
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) OR (sach y)) lang xa hoi. hieu van lam thuoc va danh va cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach y)) lang xa hoi. hieu van lam thuoc va danh va cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sach y)) lang xa hoi. hieu van lam thuoc va danh va cua tre*.