| rescue operation | 64.98 | I regarded it as a rescue operation. | ||
| relief operation | 19.75 | Afghan staff are now running relief operations. | ||
| police operation | 19.35 | Many condemned the police operation. | ||
| security operation | 18.10 | It also has a security systems operation. | ||
| search operation | 18.04 | A search operation was underway. | ||
| heart operation | 17.12 | She has had two heart operations, he said. | ||
| business operation | 14.68 | Their business operations are perfectly legitimate. | ||
| sting operation | 13.17 | Talk about sting operations gone bad! | ||
| bypass operation | 12.71 | He had to have a bypass operation. | ||
| basketball operation | 12.64 | Will he remain in basketball operations? | ||
| football operation | 11.78 | I will be in charge of all football operations. | ||
| knee operation | 11.78 | He had five knee operations. | ||
| air operation | 9.48 | Command centers direct air operations. | ||
| salvage operation | 8.76 | The salvage operation went on. | ||
| government operation | 8.49 | But government relief operations were a disaster. | ||
| aid operation | 7.24 | Aid operation could begin Tuesday. | ||
| drug operation | 6.98 | The groups tax drug operations for huge profits. | ||
| intelligence operation | 6.91 | Intelligence operations remain largely secret. | ||
| ground operation | 6.65 | For ground operations, however, troops do. | ||
| news operation | 6.58 | News operations make mistakes too. |