Perhaps you should try some spelling variations:
cheng ming » cheng bing, cheng ling, chen ping
long sein » long span, long pulsein
sein dann » sein kann, sein das, bin dann
yang july » yang judy, yang jun
yu cheng » yu chen, _ cheng
ming jin » ying jin, min jin, ming qing
yang jui » yang judy, yang xi
dann yu » wann yu
yang yi » yang xi

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: long sein dann yu cheng ming jin ((((((yang yi) OR (yang jui))) OR (yang di))) OR (yang july)) ;~.
• Adding a wildcard symbol may retrieve word variants: long sein dann yu cheng ming jin ((((((yang yi) or (yang jui))) or (yang di))) or (yang july)) ;*.