He could not, because at the time nobody liked his art.
After his death.
He sold only one.
One; Red Vineyard at Arles. The rest of Van Gogh's paintings were not sold or made famous until after his death.
None of his paintings were popular, he could not sell more than one.
He sold only one.
He painted nearly 900 and sold one of them. You do the maths!
Paintings of Amsterdam by Vincent van Gogh was created in 1885.
Paintings of Children - Van Gogh series - was created in 1889.
He gave many paintings to his brother, but not as gifts but in order sell them at the art dealer's where Theo van Gogh worked.
He painted paintings.
Van Gogh made all his drawings, paintings and prints between 1880 and 1890.
That he made about 800 paintings but could only sell one in his lifetime.