Did you mean: kaizheng kaosheng kaozhong gaozhong kaizhang caizheng kaoshang gaizheng ?
| 考证 | kǎo zhèng | to do textual research / to make textual criticism / to verify by means of research (esp. historical details) / to take an exam to get a certificate (abbr. for 考取證件|考取证件[kao3 qu3 zheng4 jian4]) |