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Protection : 488 phrases in 43 subjects |
| Agriculture | 2 |
| Animal husbandry | 8 |
| Biology | 1 |
| Biotechnology | 2 |
| Commerce | 5 |
| Construction | 1 |
| Corporate governance | 2 |
| Economics | 12 |
| Electric machinery | 5 |
| Electric traction | 2 |
| Electrical engineering | 2 |
| Electricity generation | 5 |
| Electronics | 104 |
| Environment | 64 |
| Fish farming pisciculture | 1 |
| Fishery fishing industry | 1 |
| Food industry | 4 |
| Forestry | 9 |
| Horticulture | 7 |
| International Monetary Fund | 6 |
| Isolation | 3 |
| Law | 5 |
| Mathematics | 2 |
| Microsoft | 26 |
| Name of organization | 64 |
| Nuclear physics | 5 |
| Oil / petroleum | 11 |
| Pest control | 1 |
| Politics | 1 |
| Radio | 8 |
| Radiology | 4 |
| Rail transport | 5 |
| Socialism | 2 |
| Sociology | 1 |
| Soil science | 1 |
| Statistics | 1 |
| Technology | 1 |
| Telegraphy | 1 |
| Thermal Energy | 1 |
| United Nations | 99 |
| Water resources | 1 |
| Welding | 1 |
| Wind Energy | 1 |