Here are a few major Grocery Stores, and addresses, to get you started, which Google Maps should provide directions for:
Carrefour - Sambil Mall, Veeris 27 L-155
Centrum (Piscadera) Weg Naar Bullenbaai
Centrum(Mahaai) S.B.N. Doormanweg 26, Mahaai
Van Den Tweel ( Willemstad) 28 Kaya Jacob Posner
Van Den Tweel (Jan Thiel) 34FF+X3C, Kaya Damasco, Jan Thiel
Mangusa Hypermarket - Cas Coraweg
Vreugdenhil Supermarket - z/n Schubappelweg
Alves Supermarket - 42VX+8Q9, Franklin D. Rooseveltweg
Boulevard Market Place - 33WQ+H3P, Dr. Martin Luther King Blvd
Goisco - #24 Schottegatweg Noord