Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
chinh han » chinh phan, chin han, chinh ban
han nhung » hanh nhung, hon nhung, ban nhung
cong van » cong vang, cong san, song van
tuan cau » toan cau, quan cau, thuan cam
tuan cu » tuan tu, quan cua, tuan thu

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: hoc thien hach - hanh chinh han nhung cong van ((tuan cau) OR (tuan cu))~.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh chinh han nhung cong van ((tuan cau) or (tuan cu))*.