Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithm (Expand Search), optimization algorithms (Expand Search), maximization algorithm (Expand Search)
process optimisation » process optimization (Expand Search), robust optimisation (Expand Search), process simulation (Expand Search)
age process » same process (Expand Search), a process (Expand Search), use process (Expand Search)
linear age » linear range (Expand Search), linear rate (Expand Search), linear layer (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: linear age process optimisation algorithm~.
• Adding a wildcard symbol may retrieve word variants: linear age process optimisation algorithm*.