Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cau tren » cu tren, dau tren, ca tren
hoc anh » hoc nganh, hoc nhanh, ngoc anh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
danh di » danh du, danh dien, danh gia
xanh di » vanh dai, xanh tai
cac luc » cau luc, coc luc, cac nuoc
v nang » va nang, vu nang, van nang
luc va » duc va, tuc va, loc va

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) OR (hoc anh)) v nang xa hoi. hieu va cac luc va ((danh di) OR (xanh di)) cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) or (hoc anh)) v nang xa hoi. hieu va cac luc va ((danh di) OR (xanh di)) cau tren~".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (hoc anh)) v nang xa hoi. hieu va cac luc va ((danh di) OR (xanh di)) cau tren*.