Perhaps you should try some spelling variations:
bohlin using » brain using
brain aging » brain imaging, brain using, brain mapping
min hyoung » min hong, mun young
wang yang » wang yan, wang liang, wang yanling
tin hong » tan hong, kia hong, thi hong
yang yi » yang di, yang xi, yang jui
yi hua » li hua, ya hua, yi hui

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 yang yi hua ((brain aging) OR (bohlin using)) ((tin hong) OR (min hyoung)) ghi ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang yi hua ((brain aging) or (bohlin using)) ((tin hong) or (min hyoung)) ghi ;*.