Perhaps you should try some spelling variations:
hien bach » vien bach, thien hach, hien hanh
bach nuoc » bach tuoc, sach nuoc, bich ngoc
hieu hien » bieu hien, dieu hien, chieu chien
danh vai » danh sai, danh va, doanh van
so sach » bo sach, co sach, hoc sach
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
so sanh » do sanh
cua tu » cua tuc, cua su, cua cu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ty ((nang xa) OR (nang ma)) hoi. hieu hien bach nuoc va danh vai cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (so sanh)) ty ((nang xa) OR (nang ma)) hoi. hieu hien bach nuoc va danh vai cua tu~".
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (so sanh)) ty ((nang xa) OR (nang ma)) hoi. hieu hien bach nuoc va danh vai cua tu*.