He tried to improve a poor, undeveloped area in east Baltimore.

VOA: special.2011.01.30

So they changed policies and tried another way to improve agriculture.

VOA: special.2010.03.23

Sarah tried different products to improve her hair but nothing worked.

VOA: special.2010.03.28

that 'we tried initially, during the first three years of Gorbachev's tenure, to improve the system accelerate it but keep it intact.

VOA: standard.2009.11.03