Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
wang wang » wang yang, wang liang, wang yan
yuhan one » than one
one coal » one goal, owned coal, oil coal
plan als » celan als, plan a, plan des
wong yue » wang yue, hong yu
plan du » plan de, plan fur

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang wang yuhan one coal ((plan als) or (plan du)) ((dang hai) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang yuhan one coal ((plan als) OR (plan du)) ((dang hai) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: wang wang yuhan one coal ((plan als) or (plan du)) ((dang hai) or (wong yue)) ;*.