Preview the word/PDF Doc & Searching the Skills

Question

Hello Members,

 

Hope you are doing good!!

 

Written a code for Preview the  But in the Space we are getting ? mark symbol as show in the below image and that doc need to open as a pop-up as monster and other portals are opening.

When i am searching for Multiple skills It needs to Highlite.
Here i am adding my code, Can any one guide me here.

Thank you in advance!!