The big thin to remember is that, despite what you did, Maharaja is still a big beer AND you bottled in 22 ounce bottles. BOTH those things make carbonation take longer than normal 12 ounce bottles do.
I personally would keep waiting. Because I've had beers that take months to carb up. I've never had an issue with that not happening, even if it took 6 months on a huge beer.
Adding more sugar is never an option. If you already added sugar, unless you want bottle bombs, there is no need to add any more. The problem is not with the sugar, it's with the yeast. The sugar hasn't been consumed by the yeast YET.
If you really feel you need to do something, uncap the bottles, sprinkle some dry yeast in bottle, recap, and give a bit of a shake.
If you're feeling uber anal, rehydrate said yeast in water (or use liquid) get a children's medicine dropper with ML gradients like this,
Open beer bottle, suck up slurry into sanitized eyedropper, squirt 1 ml of yeast into bottle, then re-cap. Give the bottles a shake, and then walk away for another 2-3 weeks to give that yeast a chance to do the job.
