These scans identify stocks which either bounced at a moving average (x DMA Support) or those which were able to broke down through (Fell Below x DMA) support. The "BB Squeeze + Lower Band Touch" scan identifies stocks which are in a a Bollinger Band Squeeze and also touched their lower band. That is a scenario which can frequently lead to price reversing toward the upper band. The "Multiple of Ten Bullish" scan finds stocks which bounced off of a "round" number (10, 20, 30...), which are often key psychological support / resistance levels. That's a good one to use in a Combo Scan along with something like a Hammer Candlestick, Stochastic Buy Signal or one of the moving average support scans.