Perhaps you should try some spelling variations:
hong jong » hong kong
jong than » jong chan, long thanh, jong jan
than coal » than modal, than cost, than oil
coal int » coal mine, coal pit
wong sam » wong sau, wong lai, kong sar
min min » min lin, emin mein, mind mind
min jin » min lin, ying jin

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

• Performing a fuzzy search may retrieve terms with similar spellings: hong jong than coal int ((min min) or (min jin)) ((wong sam) or (hong seo)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hong jong than coal int ((min min) OR (min jin)) ((wong sam) OR (hong seo)) ;.
• Adding a wildcard symbol may retrieve word variants: hong jong than coal int ((min min) or (min jin)) ((wong sam) or (hong seo)) ;*.