Perhaps you should try some spelling variations:
gain sharing » basin sharing, chain sharing, fair sharing
ghana health » china health, data health
min hyoung » mun young
yan ghana » yan guan, yan zhang
gain sang » shin sang
lang yan » wang yan, wang yang, zhang yan
min hong » amin hong, tin hong, min jeong

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan ghana health ((gain sang) or (gain sharing)) ((min hong) OR (min hyoung)) tan ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan ghana health ((gain sang) OR (gain sharing)) ((min hong) OR (min hyoung)) tan ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan ghana health ((gain sang) or (gain sharing)) ((min hong) OR (min hyoung)) tan ;".
• Adding a wildcard symbol may retrieve word variants: lang yan ghana health ((gain sang) or (gain sharing)) ((min hong) OR (min hyoung)) tan ;*.