Perhaps you should try some spelling variations:
sharing legal » changing legal, sharing levels
sharing dead » sharing bad, sharing a, sharing data
urban case » urban core, urban change
urban cost » urban costs, urban core, urban co2
wang wang » wang yang, wang liang, wang yan
long ago » long arm

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang hyoung ((urban case) OR (urban cost)) ((sharing dead) OR (sharing legal)) long ago ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang hyoung ((urban case) or (urban cost)) ((sharing dead) OR (sharing legal)) long ago ;~".
• Adding a wildcard symbol may retrieve word variants: wang wang hyoung ((urban case) or (urban cost)) ((sharing dead) OR (sharing legal)) long ago ;*.