Translation:I want to buy vegetables and fruit.
To reiterate others comments, English has many word pairs in a particular order. "Vegetables and Fruit" sounds wrong (although the meaning is the same). For this pair, fruits should come first for a proper translation into English.
There are many working pair orders like this, "knives and forks", "bread and butter" etc. These are called "irreversible binomials" if someone wishes to look up more examples.