Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, long trinh
yan liang » yang liang, wang liang, you liang
yang yang » wang yang, wang yan
iii gene » iii rene, iii gender, iii genome
kong siu » kong eiu, dong sin, kong sar
wong siu » wong shiu, wong sau, wong siew
1 gene » 11 gene, a1 gene, l1 gene

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan liang) OR (yang yang)) yang ((iii gene) OR (1 gene)) long thanh ((kong siu) OR (wong siu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (yang yang)) yang ((iii gene) or (1 gene)) long thanh ((kong siu) OR (wong siu)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((yan liang) or (yang yang)) yang ((iii gene) or (1 gene)) long thanh ((kong siu) OR (wong siu)) ;*.