Perhaps you should try some spelling variations:
"advanced mathematical sciences" » "advanced mathematics sciences", "advanced mathematical geosciencess", "advanced mathematical finances"
"advanced mathematical science" » "advanced mathematics science", "advanced mathematical geosciences", "advanced mathematical finance"
"based mathematical sciences" » "based mathematics sciences", "based mathematical geosciencess", "based mathematical finances", "basic 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 sciences") OR ("advanced mathematical science"))) OR ("based mathematical sciences")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"advanced mathematical sciences\") OR (\"advanced mathematical science\"))) or (\"based mathematical sciences\"))".
• Removing quotes may allow a broader search: (((( advanced mathematical sciences ) OR ( advanced mathematical science ))) or ( based mathematical sciences )).
• Adding a wildcard symbol may retrieve word variants: (((("advanced mathematical sciences") OR ("advanced mathematical science"))) or ("based mathematical sciences"))*.