I'm only guessing Google presented this in the results for debt qb. New domainers often make combinations with major company names like this, so I wouldn't be surprised. I don't like the esthetics of the domain and to be honest, I did not immediately recognize the word 'debt' in here It needs a lot of explanation. That's not a good sign...
I'm assuming you just threw two random words after the juicy "debt" word
Short is good, but this isn't right. Domains such as debtsolutions.com, debthelp.com, debtaid.com, debtcollection.com...even if you had debtslayer.com, I would value it higher than "debtqb.com"
Think about what appeals, to those engaged in a debt related site / business. Desirability, punchy, memorable, real use...