Perhaps you should try some spelling variations:
teaching change » teaching chinese, teaching chapter, teaching china
things change » things chapter
robert bin » robert b, robert n, robert i
tan yang » dan yang, tan ying, tan yong
die last » died last, die lasten, time last
yang vi » yang di, yang xi, yang yi
vi die » ii die

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

• Performing a fuzzy search may retrieve terms with similar spellings: tan yang vi die last ((teaching change) or (things change)) robert bin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tan yang vi die last ((teaching change) OR (things change)) robert bin ;*.