Perhaps you should try some spelling variations:
china going » chia going, china ying, china gain
many gene » many geneva, landy gene, many end
gene bank » gene banks, one bank, genomen bank
2nd china » und china, 2 china, did china
bank 2nd » bank bond, bank 2.1, bank 2.3
yang yi » yang xi, yang jui
nr 4 » nr 1
nr 2 » nr 1

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: ((((yang yi) OR (wang yan))) OR (yang di))((nr 4) OR (nr 2)) many gene bank 2nd china going ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yi) or (wang yan))) or (yang di))((nr 4) OR (nr 2)) many gene bank 2nd china going ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yang yi) or (wang yan))) or (yang di))((nr 4) OR (nr 2)) many gene bank 2nd china going ;*.