Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
phase dann » phase das
one phase » die phase, one case, one page
dann bin » dong bin
yang jin » yang jie, yang jun, ying jin
tang yun » yang yun, chang yun, fang yuan
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: one phase dann bin we ((((yang xi) OR (yang guang))) OR (yang jin)) ((tang yun) OR (yang di)) ;~.
• Adding a wildcard symbol may retrieve word variants: one phase dann bin we ((((yang xi) or (yang guang))) or (yang jin)) ((tang yun) or (yang di)) ;*.