Perhaps you should try some spelling variations:
cheng ying » cheng bing, cheng ling, chen yang
cheng ming » cheng bing, cheng ling, chen ping
doing our » during our, doing mmr, doing un
our dann » our data, our day, our days
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.

• Performing a fuzzy search may retrieve terms with similar spellings: doing our dann yu ((cheng ying) or (cheng ming)) jin ((yang di) or (((yang jui) OR (yang yi)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doing our dann yu ((cheng ying) OR (cheng ming)) jin ((yang di) OR (((yang jui) OR (yang yi)))) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doing our dann yu ((cheng ying) or (cheng ming)) jin ((yang di) or (((yang jui) OR (yang yi)))) ;*".