Perhaps you should try some spelling variations:
coal exports » total exports, oil exports, real exports
exports can » exporters can, exports clean, exports main
data than » data tax
than coal » than modal, than cost, than oil
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang yi
dong ii » dong di, dong sin, dong bin
ii data » iii data, ii daten, mri data
yang xi » yang yi

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: dong ii data than coal exports can ((yang jun) OR (((((yang jui) OR (yang xi))) OR (yang di)))) ;~.
• Adding a wildcard symbol may retrieve word variants: dong ii data than coal exports can ((yang jun) or (((((yang jui) or (yang xi))) or (yang di)))) ;*.