Best place is to look for videos on you tube. Also you didn't mention race/heroes/castle level /troops research or which levels exactly.
Most easiest tactic is to borrow 2 xbows/1 turtle or 3 xbows from Rakan with decent research on the xbows. They will quickly take care of most levels.
"They don’t sit on benches while eating but squat like Europeans do when they relieve themselves out in the leafy woods."