Hi Ramesh,
please checkout the FontRange_PinyinAndKeyboard.xls excel sheet you got via the virtual keyboard module. There you can generate the font range by filters. There you can define the font range output file name and which font range should taken into account when searching the defined strings. Make sure that for each output file the font range is unique. Than generate the font range files via the 'Generate Font Range by Filters' button.
Best regards,
Julian