Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
ying bank » using bank, ying yang
yan yang » yao yang, dan yang, tan yang
big bank » big banks, big bang
aid hong » aid how, aid homi, aid non
hong hai » shang hai, zhong tai, dang hai
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan yang) OR (yang yang)) di ((ying bank) or (big bank)) aid hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan yang) OR (yang yang)) di ((ying bank) OR (big bank)) aid hong hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan yang) OR (yang yang)) di ((ying bank) or (big bank)) aid hong hai ;*".