| Enter | To search for entries that contain |
|---|---|
| vaccine | the word vaccine |
| vacc* | vaccine, vaccines or vaccination |
| vaccine peptide | vaccine and peptide |
| vaccine AND peptide | vaccine and peptide |
| vaccine OR peptide | vaccine or peptide |
| vaccine NOT peptide | vaccine but not peptide |
| vaccine AND peptide NOT IL-2 | both vaccine and peptide but not IL-2 |
| vaccine AND peptide OR IL-2 | both vaccine and peptide or just IL-2 |
| vaccine AND (peptide OR IL-2) | vaccine and either peptide OR IL-2 |
| Note: the wildcard * can only be used at the end | |