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
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van lam » van nam
va danh » va dinh, va dan, va hanh
va cua » va chua, via cua, ma cua
ca cua » co 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 lang xa hoi. hieu van lam thuoc va danh ((va cua) OR (ca cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang xa hoi. hieu van lam thuoc va danh ((va cua) OR (ca cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang xa hoi. hieu van lam thuoc va danh ((va cua) OR (ca cua)) tre*.