 |
| investigation: 51 phrases in 17 subjects |
| Accounting | 1 |
| Communications | 1 |
| Construction | 3 |
| Criminal law | 1 |
| Electric traction | 1 |
| Environment | 5 |
| Finances | 1 |
| Fish farming pisciculture | 1 |
| General | 7 |
| Law | 16 |
| Life sciences | 1 |
| Medical | 4 |
| Medical appliances | 2 |
| Pharmacy and pharmacology | 1 |
| Politics | 2 |
| Statistics | 1 |
| Transport | 3 |