Perhaps you should try some spelling variations:
hien bach » vien bach, thien hach, dien sach
hien hanh » dieu hanh
co sach » bo sach, cuon sach, hoc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
va tinh » may tinh
tinh vi » trinh vi, tinh voi, tinh va
vi cua » vai cua, di cua
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: co sach ty nang xa hoi. hieu ((hien bach) OR (hien hanh)) nuoc va tinh vi cua tu~.
• Adding a wildcard symbol may retrieve word variants: co sach ty nang xa hoi. hieu ((hien bach) or (hien hanh)) nuoc va tinh vi cua tu*.