Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
data gain » data main, data going, data gaps
shang hai » shang kai, dang hai, chang ha
wenn das » wenn die
can data » can tata, dan data, fan data
yan wang » yuan wang, yang yang, qian wang
yang jie » yang jin, yang jui, yang xi
das can » das clan, ideas can, das cafe

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: wenn das can data gain ((((yang liang) OR (yan wang))) OR (((yang jie) OR (yang di)))) shang hai ;~.
• Adding a wildcard symbol may retrieve word variants: wenn das can data gain ((((yang liang) or (yan wang))) or (((yang jie) or (yang di)))) shang hai ;*.