I seem to be having trouble doing an API call for two separate sub-categories in a single API call via venues/search. The two sub-categories are Grocery and Health Food Stores.
If I do this search, only Grocery will show up. Same if I try with Farmer's Markets or Gluten-Free restaurants. What am I doing wrong, or is there a glitch in the API?
I just tested this and it appears to work with multiple categories. It's possible that this is because Health Food Stores, Farmer's Markets, and Gluten-Free restaurants are all uncommon categories, and grocery stores are very common, so they are crowding out the results because of your large search radius. You can try