Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien bach » vien bach, thien hach, hien hanh
bach nuoc » bach tuoc, sach nuoc, bich ngoc
co sach » bo sach, cuon sach, hoc sach
hoc cac » hoc cao
nang xa » nang x, lang xa, nang ma
danh vi » hanh vi, dinh vi, danh va
danh di » danh du, xanh di, danh dien
cua su » qua su

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: ((co sach) OR (hoc cac)) ky nang xa hoi. hieu hien bach nuoc va ((danh vi) OR (danh di)) cua su~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((co sach) or (hoc cac)) ky nang xa hoi. hieu hien bach nuoc va ((danh vi) OR (danh di)) cua su~".
• Adding a wildcard symbol may retrieve word variants: ((co sach) or (hoc cac)) ky nang xa hoi. hieu hien bach nuoc va ((danh vi) OR (danh di)) cua su*.