Perhaps you should try some spelling variations:
chinh quan » chinh luan, chinh quyen, chinh ngan
thuat mach » thuat sach, thuat tach, thuyet mach
quan thong » quang thong, quan trong, xuan thong
thong cong » trong cong, tong cong, thong thong
thuat tac » thuat tach, thuat tao, thuat tai
tang van » dang van, hoang van, trong van
tan van » tran van, luan van, dang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((thuat mach) or (thuat tac)) - hanh chinh quan thong cong ((tan van) or (tang van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((thuat mach) OR (thuat tac)) - hanh chinh quan thong cong ((tan van) OR (tang van)) ban.
• Adding a wildcard symbol may retrieve word variants: ho ((thuat mach) or (thuat tac)) - hanh chinh quan thong cong ((tan van) or (tang van)) ban*.