Perhaps you should try some spelling variations:
yang july » yang judy, yang jui
gene kang » gene bank
young let » young get, young men, young fat
yang jun » yang jui, pang jun, yang jin
kang kim » kanaga kim, tan kim, yong kim
young er » young hr, young men, young eun
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 yanling ((yang july) OR (yang jun)) gene kang kim ((young er) or (young let)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yanling ((yang july) OR (yang jun)) gene kang kim ((young er) OR (young let)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yanling ((yang july) OR (yang jun)) gene kang kim ((young er) or (young let)) ;*".