Censys expands queries to provide additional functionality. For example, the query a:zmap.io
executes a DNS lookup and expands to ip:220.127.116.11.
Your query was changed from:
parsed.tbs_noct_fingerprint: e16fa7ddd6215494d695a60c7c5315deeb4325da976a51add0a77f8a3707f78c and precert: true
parsed.tbs_noct_fingerprint: e16fa7ddd6215494d695a60c7c5315deeb4325da976a51add0a77f8a3707f78c AND precert: true
If this isn't what you intended, you can run your raw query without expansion.