Perhaps you should try some spelling variations:
dali test » davis test, data test, api test
housing a » housing _, housing bank
dong sign » dong sin, among sign, dong bin
lang yan » wang yan, wang yang, zhang yan
yan yang » yang yang, yao yang, dan yang
kong siu » kong eiu, wong siu, dong sin
ai test » api test, i test, 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: lang yan yang ((dali test) or (ai test)) housing a ((kong siu) or (dong sign)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan yang ((dali test) OR (ai test)) housing a ((kong siu) OR (dong sign)) ;.
• Adding a wildcard symbol may retrieve word variants: lang yan yang ((dali test) or (ai test)) housing a ((kong siu) or (dong sign)) ;*.