Perhaps you should try some spelling variations:
teaching chapter » teaching computer, learning chapter, reading chapter
teaching change » teaching chinese, teaching china, teaching case
die ersten » die erste, die kosten, des ersten
robert bin » robert b, robert n, robert i
ran ying » fan ying, tan ying, jin ying
ying di » yang di, ying jin

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: ran ying di ((die ersten) OR (der ersten)) ((teaching change) OR (teaching chapter)) robert bin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ran ying di ((die ersten) OR (der ersten)) ((teaching change) or (teaching chapter)) robert bin ;~".
• Adding a wildcard symbol may retrieve word variants: ran ying di ((die ersten) OR (der ersten)) ((teaching change) or (teaching chapter)) robert bin ;*.