Perhaps you should try some spelling variations:
cheng ying » cheng bing, cheng ling, cheng ming
doing our » during our, doing mmr, doing un
our dann » our data, our day, our days
yu cheng » yu chen, _ cheng
ying jin » yang jin, jing ji, yang jie
yang jui » yang judy, yang xi, yang yi
dann yu » wann yu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doing our dann yu cheng ying jin ((yang di) or (yang jui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doing our dann yu cheng ying jin ((yang di) OR (yang jui)) ;*.