Perhaps you should try some spelling variations:
third teaching » toward teaching, third reading, china teaching
teaching doing » teaching china
first third » first thirty, first child, first thing
doing von » doing un, ing von
lang yan » wang yan, wang yang, zhang yan
yang xi » yang jui
yang yi » yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan ((yang di) or (((yang xi) or (yang yi)))) first third teaching doing von ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan ((yang di) OR (((yang xi) OR (yang yi)))) first third teaching doing von ;.
• Adding a wildcard symbol may retrieve word variants: lang yan ((yang di) or (((yang xi) or (yang yi)))) first third teaching doing von ;*.