Perhaps you should try some spelling variations:
special administration » social administration, imperial administration, penal administration
administration region » administration regime, administration regionale, administration regimens
hon kong » hong kong, hon keung, dan kong

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( hon kong special administrative region of china ) OR ( hon kong special administration region of china ))".
• Adding a wildcard symbol may retrieve word variants: (( hon kong special administrative region of china ) OR ( hon kong special administration region of china ))*.