Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hieu van » thien van, lieu va, hieu ve
lang xa » dang xay, lang van
lang ha » long ha
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
ba benh » va benh, bo benh, bach benh
benh di » benh dai, ben di, benh da
cuu tre » cua tre, cau tren, cau treo
xuc ba » xuc ban
di cuu » di cau, di cua, dinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ky ((lang xa) or (lang ha)) hoi. ((hieu van) OR (hieu va)) cam xuc ba benh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky ((lang xa) OR (lang ha)) hoi. ((hieu van) OR (hieu va)) cam xuc ba benh di cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ky ((lang xa) or (lang ha)) hoi. ((hieu van) OR (hieu va)) cam xuc ba benh di cuu tre*".