Perhaps you should try some spelling variations:
wage laws » wage law, wage gaps
laws sing » law using
sing kong » king kong, hong kong
kong saur » kong sar, kong siu, kong your
cong van » congo can, duong van, cong sun
kun wage » run wage, non wage, can wage
yan kun » yan guan, yan yuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((cong van) or (cong shu)) yan kun wage laws sing kong saur ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((cong van) OR (cong shu)) yan kun wage laws sing kong saur ;.
• Adding a wildcard symbol may retrieve word variants: ((cong van) or (cong shu)) yan kun wage laws sing kong saur ;*.