I have 2 w2s from different states but when I enter both it gives me the smallest refund. I don’t make 30k or over and I don’t own or owe taxes. How can I get my 2 FULL refunds to both w2s?

An individual can only file one Federal 1040 each year.

Both 2019 W-2’s will have to be entered in the Federal tax return to determine your gross income and taxable income for the year.   It sounds like one W-2 may not have withheld as much Federal taxes as you would have liked.

If box 15 of the W-2’s report different states, you likely will have:

• Two part-year resident state tax returns, or
• One full-year tax return and a nonresident state tax return.

You don't receive 2 separate refund amounts, one for each W-2.  When you enter the first W-3, you see a refund amount that would only be valid if you had only that one W-2.  When you enter the second W-2, your return recalculates based on income, tax owed, and tax withheld that includes both W-2s, so that your refund is based on the cumulative amounts, not on the second W-2 you enter.  You receive only the cumulative refund amount