Perhaps you should try some spelling variations:
lasten teaching » based teaching, stem teaching, content teaching
teaching china » teaching doing
robert bin » robert b, robert i
jin ying » li ying
robert n » robert _, robert e, robert j
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 china ((robert bin) OR (robert n)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "jin ying ((di die) or (vi die)) lasten teaching china ((robert bin) OR (robert n)) ;~".
• Adding a wildcard symbol may retrieve word variants: jin ying ((di die) or (vi die)) lasten teaching china ((robert bin) OR (robert n)) ;*.