Why my orders that bought in dip still working instead of filled?so disgusting,is it because I bought too little?

Vincent AY : Next time put a range in order it to be fill. Sometimes too many buyer vs seller.

101546527 OP Vincent AY : Thank you so much

103401978 : First match the parties with the largest trade volume for buying and selling, then proceed with small trades.

101546527 OP 103401978 : Understood! Then it must be that I bought too little.

WaListreet : You buy too little. They fill big orders first. Wasted if you didn't get that dip earlier!!

101546527 OP WaListreet : I got it! Thanks for your answer!