The search feature searches for students who have accounts created and students without accounts created. If a student is not appearing in the search results you may try using a different search criteria or using the advanced search.
If the search results still come back as No results, this indicates that either an ISIR has not been imported into StudentVerification for the student or the student has a social security mismatch.
Please Note: Student ISIRs that appear in the "Invalid ISIR" column of the ISIR imports page will not appear in either search. If a student does not appear in either search you may want to check if the student has an invalid ISIR.