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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: long sein wann yu cheng ming jin ((((yang xi) or (yang di))) or (yang july)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long sein wann yu cheng ming jin ((((yang xi) OR (yang di))) OR (yang july)) ;*.