I spery NPK 20 20 20 Water Soluble Fertilizer for Plants but it's not work
Did you try to give some iron supplements? A plant can be oversaturated with the macronutritiens and same time lacking the micros, like iron, manganese, zink, etc... The PH of the soil also influences the solvability of those. If you have your PH too high, you can add as many micros, your plant cannot take and use them.