can i run muliple campaign with same keywords ?

Hi
I am Trying To Run Three campaign For My Three Projects.
* Three Campaign has same keywords + same location targeting + search network.
* Different landing pages for three projetcs
I need to run three projects campaign , without competiting between three project due to same Keyword.
(or)
Shall I run Single Campaign For My Three projects by seperating each project by seperate Ad Groups.
Pls help me with some tips

See original post by Dhivakar Kumar