Perhaps you should try some spelling variations:
"appendix mathematical geosciences" » "appendix mathematical sciences", "appendix mathematical science", "appendix mathematics science"
"advanced mathematical finance" » "advanced mathematics finance", "based mathematical finance", "advanced mathematical sciences"

Try widening your search to All Fields.

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: (("advanced mathematical finance") OR ("appendix mathematical geosciences")).
• Removing quotes may allow a broader search: (( advanced mathematical finance ) or ( appendix mathematical geosciences )).
• Adding a wildcard symbol may retrieve word variants: (("advanced mathematical finance") or ("appendix mathematical geosciences"))*.