Perhaps you should try some spelling variations:
than change » chain change, can change, mean change
min hyoung » min hong, mun young
hyoung tan » hyoung gun, young man, hong tan
yan ghana » yan guan, yan zhang
han chang » huang chang, can change, chin chang
data yang » apa yang
yang min » yang mind, yang jin, tang min
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan ghana) or (((han chang) OR (than change)))) health data yang min hyoung tan ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan ghana) OR (((han chang) OR (than change)))) health data yang min hyoung tan ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan ghana) or (((han chang) OR (than change)))) health data yang min hyoung tan ;*".