Perhaps you should try some spelling variations:
trong cuong » trong chuong, trong cong, trong luong
chinh quan » chinh luan, chinh quyen, chinh ngan
thien hach » thien thanh, hien hanh
quan trong » gian trong
cuong manh » duong manh, cuong danh, luong manh
dien sach » dien anh
manh toan » thanh toan, anh tuan, tinh 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 trong cuong manh 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 cuong manh toan ban*.