Perhaps you should try some spelling variations:
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"
"modified lighting optimizer algorithms" » "modified lighting optimized algorithms", "modified lighting optimized algorithm", "modified lighting optimization algorithms", "modified caging optimizer algorithms"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective estimation algorithm") OR ("modified lighting optimizer algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified objective estimation algorithm\") OR (\"modified lighting optimizer algorithms\"))".
• Removing quotes may allow a broader search: (( modified objective estimation algorithm ) OR ( modified lighting optimizer algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective estimation algorithm") OR ("modified lighting optimizer algorithms"))*.