Perhaps you should try some spelling variations:
liang wei » xiang wei, zhang wei, wang wei
wang ryan » wang yan, wang yang, wang ban
wang tan » wang yan, wang ban, wang dan
tan bann » can bank, tan tan, tan yang
bann oil » can oil
oil chad » oil can, oil coal
hong hai » shang hai, zhong tai, dang hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang tan bann oil chad liang wei ((hong hai) or (wang ryan)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang tan bann oil chad liang wei ((hong hai) OR (wang ryan)) ;.
• Adding a wildcard symbol may retrieve word variants: wang tan bann oil chad liang wei ((hong hai) or (wang ryan)) ;*.