| Problem abbr. | |
| gen. | business; issue; problem; trouble; difficulty |
| comp., MS | issue; problem |
| fig. | headache |
| tech. | task |
|
Chapman : 17 phrases in 10 subjects |
| Analytical chemistry | 1 |
| Automated equipment | 1 |
| General | 2 |
| High energy physics | 1 |
| Mathematics | 1 |
| Medical | 5 |
| Municipal planning | 1 |
| Physics | 2 |
| Statistics | 2 |
| Zoology | 1 |