Perhaps you should try some spelling variations:
housing bonds » housing costs
wang yong » wang yang, wang hyoung, wang yan
yong yang » yang yang, dong yang, ying yang
housing a » housing _, housing bank
kong sara » kong sar
api test » ai test, ii test
i test » ai test, i testi, ii test

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yang ((api test) OR (i test)) ((housing bonds) or (housing a)) kong sara ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yang ((api test) OR (i test)) ((housing bonds) OR (housing a)) kong sara ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yang ((api test) OR (i test)) ((housing bonds) or (housing a)) kong sara ;".
• Adding a wildcard symbol may retrieve word variants: wang yong yang ((api test) OR (i test)) ((housing bonds) or (housing a)) kong sara ;*.