The phrase "hast do with" refers to having a connection or association with something. There are several synonyms to express this relationship such as concern, relate, pertain to, have to do with and be connected with. Other alternatives include refer to, touch upon, relate to, deal with, involve and affect. Depending on the context, other related words could be relevant, linked, correlated, affiliated, and associated. In essence, these synonyms communicate a connection or relevance between various elements in a situation, providing a more precise and expressive way of conveying the meaning of 'hast do with'.