Translation of quaint in Spanish

I usually charge 15 dollars per hour, but I don't care very much for the hourly system. I can also help with corrections and suggestions, but only if the original text is a serious translation and not an automatic one.
Short question: when searching Spanish numbers, what would you write in Google? In Spanish, of course? In English I would write: 'spanish numbers' and not 'numbers in spanish'. The results are almost the same.
I teach at the university of natural sciences. I have studied at the ETH in Zurich. At that time I started learning Spanish and I found Vocabulix. Since then I'm using it regularly with joy.