Decide what the words mean in your search
An illustrative query for beam diagnostics can be a topic request, while a quoted phrase asks for those adjacent words. The official guide documents AND for requiring terms and quotation marks for a phrase. Use the operation that matches the question instead of assuming that every extra word automatically narrows the results.
A useful search note contains the intended topic and the actual query you tried. If a broad query returns useful related material, inspect it before narrowing. If it returns many records containing only one of the important concepts, requiring both terms can be a more appropriate next step than restricting the catalogue to an arbitrary year.
Use title scope only when the title is the evidence
The guide identifies a title field for searching words in the resource’s title. That can help when you remember a title phrase, but it can hide relevant material when the subject appears only in the description. Treat title-only searching as a deliberate change in scope rather than a universally better version of a topic search.
For an illustrative lookup, first record the speaker and remembered wording. If the exact title is uncertain, use a broader topic query and inspect candidate descriptions. Narrow to a title phrase once there is a good reason to expect that wording. This prevents a zero-result title search from being mistaken for proof that no recording exists.
Verify the returned recording before sharing it
Compare the result’s title, contributor, date and programme context with the session you wanted. A technically correct phrase match can still be an older lecture, a short news item or a different speaker’s treatment of the same subject. Query precision and recording identity are related checks, not substitutes for one another.
Keep the selected record address with the successful query in personal notes. If another person cannot reproduce a result, compare the exact query and any date or collection filters before diagnosing an account issue. These examples explain documented semantics; no live query count, ranking result or completeness guarantee is claimed.
Questions about this guide
Will two unquoted words always require both concepts?
CERN’s guide says simple terms can match either word. Use its documented all-term operator when that is the intended query.