Perhaps you should try some spelling variations:
"modified notion approximation algorithms" » "modified network approximation algorithms", "modified time approximation algorithms", "modified one approximation algorithms"
"core forecasting method algorithm" » "core focusing method algorithm", "core forecasting mixed algorithm", "_ forecasting method algorithm", "a forecasting method algorithm", "core forecasting mom algorithm"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("core forecasting method algorithm") OR ("modified notion approximation algorithms"))~.
• Removing quotes may allow a broader search: (( core forecasting method algorithm ) or ( modified notion approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("core forecasting method algorithm") or ("modified notion approximation algorithms"))*.