Perhaps you should try some spelling variations:
test housing » cost housing, test using, era housing
bonds rating » bonds ratings, bond rating, bond ratings
bounds using » bonds using, clouds using, lands using
wang ning » wang jing, wang liang, wang yang
zhang dai » zhang fan, zhang wei, zhang yan
wang9 d » wang d

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ning ((zhang dai) or (wang9 d)) test housing ((bonds rating) or (bounds using)) a ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ning ((zhang dai) OR (wang9 d)) test housing ((bonds rating) OR (bounds using)) a ;.
• Adding a wildcard symbol may retrieve word variants: wang ning ((zhang dai) or (wang9 d)) test housing ((bonds rating) or (bounds using)) a ;*.