Perhaps you should try some spelling variations:
wang gan » wang yan, wang ban, wang yang
wang dan » wang yan, wang ban, wang yidan
hua gene » human gene, a gene, hua ren
hua chen » jui chen, yu chen, a chen
pang jun » yang jui
hong 7hi » hong ghi, zhong zhi, hong hai
hong 7 » hong w, hong a, hong g

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang gan) OR (wang dan)) li ((hua gene) or (hua chen)) pang jun ((hong 7) or (hong 7hi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang gan) OR (wang dan)) li ((hua gene) OR (hua chen)) pang jun ((hong 7) OR (hong 7hi)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang gan) OR (wang dan)) li ((hua gene) or (hua chen)) pang jun ((hong 7) or (hong 7hi)) ;*".