The true seeing from the knowledge domain, at spell circle 4, it didn't give me +10 spot.

Haven't tested it with the normal true seeing clerics get at spell circle 5.

I asked about this a while ago, i understand that whilst True Seeing gives many benefits it gives no bonuses against stealthed characters.

It only affected magical illusions e.g. Phantasmical Killer, invisibilty, improved invisibility, shape change, polymorph etc.

I did suggest it gives a + to spot and search but the DM's weren't convinced.

It's too overpowered and not realistic in regards to the TrueSeeing rules.