Perhaps you should try some spelling variations:
computation using » computations using (Expand search), computation in (Expand search), composition using (Expand search)
locking pythons » blocking methods (Expand search)
charge program » change program (Expand search), exchange program (Expand search), change programme (Expand search)
pythons python » python python (Expand search), pitons python (Expand search), piton python (Expand search)
using locking » using docking (Expand search), using stacking (Expand search), using tracking (Expand search)
using charge » using charged (Expand search), using large (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( AND computation using charge program ) OR ( using locking pythons python programming ))*.