| full-dress investigation(expression, information, investigation, inquiry) |
| further inquiry(expression, information, investigation, inquiry) |
| grilling(noun, study, knowledge, investigation) |
| hearing(noun, study, knowledge, investigation) |
| house-to-house inquiry(expression, information, investigation, inquiry) |
| incident investigation system(expression, information, investigation, inquiry) |
| inquiry office(expression, information, investigation, inquiry) |
| inquiry period(expression, information, investigation, inquiry) |
| inspection(noun, study, knowledge, investigation) |
| interrogation(noun, study, knowledge, investigation) |
| investigation body(expression, information, investigation, inquiry) |
| investigation officer(expression, information, investigation, inquiry) |
| investigation process(expression, information, investigation, inquiry) |
| joint research centre(expression, research, investigation, learning) |
| legal investigation(expression, information, investigation, inquiry) |
| line of investigation(expression, information, investigation, inquiry) |
| machine learning research(expression, research, investigation, learning) |
| poll(noun, study, knowledge, investigation) |
| query(noun, study, knowledge, investigation) |
| quest(noun, study, knowledge, investigation) |