Censys expands queries to provide additional functionality. For example, the query a:zmap.io
executes a DNS lookup and expands to ip:141.212.120.90.
Your query was changed from:
((parsed.subject.organizational_unit: "hosted by" OR parsed.subject.organizational_unit: "positivessl multi domain" OR parsed.subject.organizational_unit: "ssl unified communications") AND tags.raw: "trusted") AND tags.raw: "dv"
to
((parsed.subject.organizational_unit: "hosted by" OR parsed.subject.organizational_unit: "positivessl multi domain" OR parsed.subject.organizational_unit: "ssl unified communications") AND tags.raw: "trusted") AND tags.raw: "dv"
If this isn't what you intended, you can run your raw query without expansion.