| Typing this text: | Finds documents that contain: |
| heroin & drugs & news | all three of these words |
| heroin | drugs | news | at least one of these words |
| heroin, drugs, news | at least one of these words. Notes gives higher relevance to documents that contain two or three of these words |
| drugs@news | drugs and news next to each other |
| (drugs AND heroin) OR news | drugs and heroin; news |
| drugs AND (heroin OR news) | drugs and heroin; drugs and news |
| drugs AND NOT (heroin OR news) | drugs, as long as they don't also contain heroin or news |