Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien bach » vien bach, thien hach, hien hanh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
cua te » cua tu
du va » dau va, tu va, vu va
su va » su van, tu va

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu hien bach ((du va) OR (su va)) hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu hien bach ((du va) OR (su va)) hanh vi cua te*.