Perhaps you should try some spelling variations:
yang july » yang judy, yang jui, yang jun
wang yang » wang liang, wang yanling
yang hui » yang jui, wang hui, yang muxi
wong siu » wong shiu, wong sau, wong siew
kong siu » kong eiu, dong sin, kong sar
gene w » gene we, gene _, gene m
w task » _ task, a task, 3 task

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yang) OR (wang yan)) ((yang hui) or (yang july)) gene w task ((wong siu) or (kong siu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (wang yan)) ((yang hui) OR (yang july)) gene w task ((wong siu) OR (kong siu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) OR (wang yan)) ((yang hui) or (yang july)) gene w task ((wong siu) or (kong siu)) ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) OR (wang yan)) ((yang hui) or (yang july)) gene w task ((wong siu) or (kong siu)) ;*.