Perhaps you should try some spelling variations:
chinh quan » chinh luan, chinh quyen, chinh ngan
thien hach » thien thanh, hien hanh
quan trong » gian trong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
dien sach » dien anh
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 trong cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien hach) OR (dien sach)) - hanh chinh quan trong cong thanh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien hach) or (dien sach)) - hanh chinh quan trong cong thanh toan ban*.