Perhaps you should try some spelling variations:
housing bonds » housing costs
era housing » a housing, rural housing, core housing
bonds using » bounds using, bonds being, lands using
wang jing » wang ning, wang liang, wang yang
using ann » using bank, using a, using ai
wang di » yang di, wang d, wang li

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang jing ((zhang fan) or (wang di)) era housing bonds using ann ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang jing ((zhang fan) OR (wang di)) era housing bonds using ann ;.
• Adding a wildcard symbol may retrieve word variants: wang jing ((zhang fan) or (wang di)) era housing bonds using ann ;*.