Keyword Factory
This tool helps you to expand your technical vocabulary using the arXiv dataset.
Note that terms which occur infrequently in arXiv articles will not return good (if any) results.
Read about our method here.
credit card
is associated with:
fraud,   
payment-terminal,   
card-holder,   
fraudulent,   
debit-card,   
transaction-data,   
merchant,   
payment,   
debit,   
banks,   
shopping,   
banking,   
criminals,   
transaction,   
purchase,   
passwords
Using these keywords in combination
with credit card will
help you expand your search horizons.