First, read the English article below.

Whether you bought the wrong one and can’t return it or you’re still finishing an older bottle, you can customize the color of your foundation to create a better match for your skin. One way to make foundation lighter is by applying it with a wet sponge instead of your fingers. You can also make foundation lighter by mixing it with:  Moisturizer Primer A lighter foundation Concealer or finishing powder Just as you can lighten foundation that’s too dark, so too can you make a foundation darker if it’s too light for your skin. To make foundation darker, try:   Adding blush or concealer Mixing it with bronzer Combining it with a darker foundation or tinted moisturizer Foundation that isn’t right for your undertone can be customized as well. To make your foundation match a yellow undertone, add turmeric. Add a pinkish-brown blush to match a more pink or blue undertone.  To make a foundation more brown, add cocoa powder. 

Now, please write a short abstract for it in Vietnamese. Abstract:
Làm sáng màu kem nền có màu tối. Làm đậm màu kem nền có màu quá sáng. Thay đổi màu kem nền.