In TOC page links are not creating properly, Acrobat dc using c++

Hi,

I'm working TOC page in acrobat pdf, I'm using PDWordfinder from getting words using wordenumerator only.

Actually I need to create links, I'm able to create links but some documents not creating in between lines.

i used:

pConfig.ignoreCharGaps = true;//false
pConfig.ignoreLineGaps = false;//true

I'm attaching screen shots, Please refer created and  not created screen shoots.