Perhaps you should try some spelling variations:
wang yangming » wang yangming's, wang yanling, wang danning
jeong 情 » jeong _, jeongui 情, jeong mi
yang der » gang der, yang dean, klang der
der test » der tests, der text, per test
jeong su » jeong _, jeong mi, rong su
test ke » test bed, test der, test kit
ke eung » kim eung

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yangming yang der test ke eung ((jeong su) or (jeong 情)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yangming yang der test ke eung ((jeong su) OR (jeong 情)) ;*.