<View><Query><Where><And> <Eq> <FieldRef Name="Active" /> <Value Type="Integer">1</Value> </Eq> <Or> <IsNull> <FieldRef Name="NgayHetHan" /> </IsNull> <Geq> <FieldRef Name="NgayHetHan" /> <Value Type="DateTime"> <Today /> </Value> </Geq> </Or> </And></Where><OrderBy><FieldRef Name="NgayBatDau" Ascending="FALSE"/></OrderBy></Query><RowLimit>0</RowLimit></View>