Perhaps you should try some spelling variations:
chinh quan » chinh luan, chinh quyen, chinh ngan
thien hach » thien thanh, hien hanh
dien sach » dien anh
quan cong » qua cong, luan cong, quan dong
cong cong » cong dong, trong cong, dung cong
cong anh » cong danh, dong anh, hong anh
anh toan » manh toan, anh tuan, thanh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien hach) or (dien sach)) - hanh chinh quan cong cong anh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien hach) OR (dien sach)) - hanh chinh quan cong cong anh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien hach) or (dien sach)) - hanh chinh quan cong cong anh toan ban*.