Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
lam thuoc » am thuc, cay thuoc, nam thuc
sach thu » sach thue, sach thieu, sach tham
thu bang » thu ban, thu hang, chu bang
hieu van » hieu va, thien van, lieu va
danh sai » dung sai, danh bat, danh dau
tu sach » thu sach, su sach, te sach
bang xa » lang xa, bang va, mang xa
va danh » va dinh, va dan, va hanh
sai cua » dai cua, hai cua, lai cua
cua te » cua tu

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 thu bang xa hoi. hieu van ((lam thuoc) OR (nam thuoc)) va danh sai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu bang xa hoi. hieu van ((lam thuoc) OR (nam thuoc)) va danh sai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach thu bang xa hoi. hieu van ((lam thuoc) OR (nam thuoc)) va danh sai cua te*.