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: wang yanling cdi ((a gene) OR (a genre)) one ((((man one) OR (man oder))) OR (than one)) abu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yanling cdi ((a gene) OR (a genre)) one ((((man one) or (man oder))) or (than one)) abu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yanling cdi ((a gene) OR (a genre)) one ((((man one) or (man oder))) or (than one)) abu ;*.