 |
| investigation: 196 phrases in 30 subjects |
| Astronomy | 10 |
| Chemistry | 1 |
| Commerce | 2 |
| Criminal law | 13 |
| Customs | 3 |
| Earth sciences | 1 |
| Economy | 7 |
| Electric traction | 1 |
| Electronics | 1 |
| Environment | 4 |
| Finances | 7 |
| General | 21 |
| Government, administration and public services | 1 |
| Immigration and citizenship | 3 |
| Information technology | 1 |
| Insurance | 1 |
| International trade | 5 |
| Law | 65 |
| Life sciences | 6 |
| Marketing | 1 |
| Medical | 12 |
| Metallurgy | 4 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 2 |
| Nuclear and fusion power | 1 |
| Pharmacy and pharmacology | 3 |
| Security systems | 2 |
| Trade unions | 1 |
| Transport | 14 |
| United Nations | 2 |