How to load multiple dataset dynamically from database server

Here is my code for loading the datasets,

but cannot load the other datasets and says :

ImageTracker: Failed to activate dataet because the total number of active Trackables exceeds 100 targets.

How can i make used of the Datatype Dataset : 

QCAR::DataSet* dataSetStonesAndChips    = 0;

So that i can reused it for loading and activating the other datasets.. 

here is the code from videoplayback.java 

        for(int x=0;x<stringList.size();x++)
                  {
                     pathsd=videopath+dirfolder+"/"+stringList.get(x);
                     
                     if(loadTrackerData(pathsd) > 0)
                     {
                    	  ret=true;
                      }
                  }