Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
gian cua » gian xu
thuoc va » thuc va, thuoc ma, thuong va
hieu van » hieu va, thien van, lieu va
sach thu » sach thue, sach thieu, sach tham
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, xach tay
van lam » van nam
va danh » va dinh, va dan, va hanh
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach ty) or (sach thu)) lang xa hoi. hieu van lam thuoc va danh ((gian cua) OR (ban cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ty) OR (sach thu)) lang xa hoi. hieu van lam thuoc va danh ((gian cua) OR (ban cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ty) or (sach thu)) lang xa hoi. hieu van lam thuoc va danh ((gian cua) OR (ban cua)) tre".
• Adding a wildcard symbol may retrieve word variants: toc ((sach ty) or (sach thu)) lang xa hoi. hieu van lam thuoc va danh ((gian cua) OR (ban cua)) tre*.