Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
trang xa » trang va, trang ha, trong xa
danh vai » danh sai, danh va, doanh van
cua viet » ca viet, hoa viet, cua vat
hieu va » lieu va, hieu qua
tang xa » tang ma, lang xa, tang ha
vai cua » dai cua, hai cua, lai cua
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa

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: thuoc sach y ((tang xa) OR (trang xa)) hoi. hieu va cac ((luc va) OR (tuc va)) danh vai cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y ((tang xa) OR (trang xa)) hoi. hieu va cac ((luc va) or (tuc va)) danh vai cua viet~".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y ((tang xa) OR (trang xa)) hoi. hieu va cac ((luc va) or (tuc va)) danh vai cua viet*.