Perhaps you should try some spelling variations:
dong yeon » dong myeon, jeong yeon, wong yoon
yeon bank » non bank
yang yang » wang yang, wang yan
yang jie » yang jin, yang jui, yang yi
bank im » bank imf, bank ii, bank ifc
im when » im wien
do ming » guo ming
yang xi » yang yi, yang jui

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: dong yeon bank im when do ming ((((yang yang) OR (yang jie))) OR (((yang xi) OR (yang di)))) ;~.
• Adding a wildcard symbol may retrieve word variants: dong yeon bank im when do ming ((((yang yang) or (yang jie))) or (((yang xi) or (yang di)))) ;*.