Fetching through BW query

hi

i tried to fetch a BW query while modeling in VC ..

but i could not get it

i tried to fetch the query through "find data"

in that i gave

system type: SAP_BW

Look for:(only 2 options available)

look for service by name

look for service by group

which ever i choose i could not get any list atfer searching

plz give me a way to solve it