Perhaps you should try some spelling variations:
tested using » tests using, testing using, system using
wang yidan » wang yan
test using » tests using, testing using
bank bond » bank bonds
bond sara » bond sale, bond data
ying jin » yang jin, jing ji
yang jie » yang jin, yang di, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yidan ((ying jin) OR (yang jie)) ((test using) OR (tested using)) bank bond sara ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan ((ying jin) OR (yang jie)) ((test using) OR (tested using)) bank bond sara ;".
• Adding a wildcard symbol may retrieve word variants: wang yidan ((ying jin) OR (yang jie)) ((test using) OR (tested using)) bank bond sara ;*.