How to get a few Products from a store satisfying some string using rest API?

I want to get 4 products from Magento store. These items contain “food” string in their SKUs. SKU can be something like “FoodDietic“, “TastyFood” and so on. I have done a research to understand how to use the searchCriteria but I still can not. This is the request I used but it is not what I need.[filter_groups][0][filters][0][field]=category_gear&searchCriteria[filter_groups][0][filters][0][value]=86&searchCriteria[filter_groups][0][filters][0][condition_type]=finset&fields=items[sku,price,name]

What kind of get request should I send to get all my 4 Items?

Here is what I have read: Magento Get Request