| Subject | English | Russian |
| progr. | different levels of complexity | различные уровни сложности (ssn) |
| math. | level of complexity | уровень сложности (степень) |
| progr. | next level of complexity | следующий уровень сложности (ssn) |
| gen. | of any level of complexity | любой сложности (... while having sufficient resources and technical expertise through our physical locations to tackle projects of any level of complexity – CIMA Canada Inc. Tamerlane) |
| gen. | of varying level of complexity | различного уровня сложности (... different types of instructional directive documents, of varying level of complexity and length ... – by Joel Rhee Tamerlane) |