Perhaps you should try some spelling variations:
yulu cheng » yulu chen, yuan cheng
sein dann » sein kann, bin dann, ein dank
sein das » sein des, sein de, sein du
yu cheng » yu chen, _ cheng
tong hui » wang hui
hui ying » huei ying, hoi ying, hui ping
ying yue » yang yue, wang yue, wong yue

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: dong ((sein dann) OR (sein das)) ((yulu cheng) OR (yu cheng)) tong hui ying yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((sein dann) OR (sein das)) ((yulu cheng) or (yu cheng)) tong hui ying yue ;~".
• Adding a wildcard symbol may retrieve word variants: dong ((sein dann) OR (sein das)) ((yulu cheng) or (yu cheng)) tong hui ying yue ;*.