Perhaps you should try some spelling variations:
identification algorithm » detection algorithm (Expand Search)
process identification » model identification (Expand Search)
doi optimization » dog optimization (Expand Search), _ optimization (Expand Search), policy optimization (Expand Search)
rat process » batch process (Expand Search), water process (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( binary rat process identification algorithm ) OR ( binary a doi optimization algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( binary rat process identification algorithm ) OR ( binary a doi optimization algorithm ))*.