Perhaps you should try some spelling variations:
rising costs » rising cost, driving costs, firing costs
funding risk » funding list, building risk, fund risk
yang using » yang jing, making using, change using
wang yang » wang yan, wang liang, wang yanling
ai costa » can costa, _ costa, da costa
au costa » can costa, _ costa, da costa
how six » how asia

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang using ((ai costa) OR (au costa)) ((rising costs) OR (funding risk)) how six ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang using ((ai costa) OR (au costa)) ((rising costs) OR (funding risk)) how six ;*.