Perhaps you should try some spelling variations:
wang liang » wang yang
one phase » die phase, one case, one page
phase das » phase des, phase der, phase die
yan guan » gan guan, yan yuan, yang guang
yang jin » yang jie, yang jun, ying jin
das bin » das big, das bn, das bilan
yang yi » yang xi, 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 das bin we ((((wang liang) OR (yan guan))) OR (yang jin)) ((yang yi) OR (yang di)) ;~.
• Adding a wildcard symbol may retrieve word variants: one phase das bin we ((((wang liang) or (yan guan))) or (yang jin)) ((yang yi) or (yang di)) ;*.