Perhaps you should try some spelling variations:
lasten teaching » based teaching, content teaching, related teaching
stem teaching » team teaching, from teaching, does teaching
china robert » china hubert, china expert, china recent
robert bin » robert b, robert n, robert i
jin ying » li ying
di die » die die, ii die, xi die
vi die » ii die

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: jin ying ((di die) OR (vi die)) ((lasten teaching) OR (stem teaching)) china robert bin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "jin ying ((di die) or (vi die)) ((lasten teaching) OR (stem teaching)) china robert bin ;~".
• Adding a wildcard symbol may retrieve word variants: jin ying ((di die) or (vi die)) ((lasten teaching) OR (stem teaching)) china robert bin ;*.