Perhaps you should try some spelling variations:
david hong » david ng
bank david » black david, mark david, bank ravi
yang yang » wang yang, wang yan
yang yao » wang yan, yang yi, yang fan
yang jui » yang judy, yang di, yang xi
hong ghi » zhong zhi, hong g, hong hai
buy one » body one, buy come, buy more

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yang yao) OR (yang yang))) or (yang jui)) yang ((buy one) or (study one)) bank david hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang yao) OR (yang yang))) OR (yang jui)) yang ((buy one) OR (study one)) bank david hong ghi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yao) OR (yang yang))) or (yang jui)) yang ((buy one) or (study one)) bank david hong ghi ;".
• Adding a wildcard symbol may retrieve word variants: ((((yang yao) OR (yang yang))) or (yang jui)) yang ((buy one) or (study one)) bank david hong ghi ;*.