Perhaps you should try some spelling variations:
black david » brock david, blanc david, baldock david
david young » david loundy
gene black » den black, gene bank, line black
liang dan » liang tan, king dan, wang dan
liang sun » liang tan, wing sun
young ghi » young choi, hong ghi, young get
yang xi » yang di, yang yi, yang jui
xi gene » i gene, iii gene

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((liang dan) OR (liang sun)) yang xi gene black david young ghi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((liang dan) OR (liang sun)) yang xi gene black david young ghi ;*".