Asking if They Have It

Do you have this model?

Use 'tienes' (informal you) in casual stores or with younger staff.

Excuse me, do you have this model?

Use 'tiene' (formal you) to be polite to staff in most shops.

Do you have a bigger size?

Do you guys have another size?

Using 'tienen' (they/you all) naturally refers to the store as a whole.

Do you have this in another color?

Do you have more in the back?

A very natural way to ask if they have more in the stockroom.

Can you look for more, please?

When are more going to arrive?

Where are the shoes?

Where can I find the shoes?