Hi Jalina
0TCTBWOBJCT_TEXT should be working fine.
Check whether your DS is migrated to 7x or else the DS is not active.
Source system of this datasource should be BW system.
Try this:
0TCTBWOBJCT text not fully load via ProcessChain 0TCT_MD_C_FULL_P01
Text for 0TCTSTATOBJ in BW 7.0 Content
Regards,
Sakthi