Perhaps you should try some spelling variations:
crash teaching » death teaching, rich teaching
china robert » china hubert, china recent, china robin
china expert » china export, china's export, child experts
tan yang » dan yang, tan ying, tan yong
jie die » wie die, eine die, jie lien
die die » wie 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: tan yang ((jie die) OR (die die)) crash teaching ((china robert) OR (china expert)) n ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tan yang ((jie die) or (die die)) crash teaching ((china robert) OR (china expert)) n ;~".
• Adding a wildcard symbol may retrieve word variants: tan yang ((jie die) or (die die)) crash teaching ((china robert) OR (china expert)) n ;*.