Perhaps you should try some spelling variations:
tests housing » tests using, trends housing, versus housing
housing bank » housing bonds, housing a
bank loans » bank loan
loans sara » loans data
wang ying » wang yang, wang yong, wang jing
yang fan » zhang fan, yang dean, yang yang
yang a » yang ka, yang _, yang 8

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ying ((yang a) or (yang fan)) tests housing bank loans sara ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ying ((yang a) OR (yang fan)) tests housing bank loans sara ;.
• Adding a wildcard symbol may retrieve word variants: wang ying ((yang a) or (yang fan)) tests housing bank loans sara ;*.