Perhaps you should try some spelling variations:
"advanced mathematical sciences" » "advanced mathematical science"
"based mathematical sciences" » "based mathematical science"
"basic mathematical sciences" » "basic mathematical science"

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 ((("based mathematical sciences") OR ("basic mathematical sciences")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced mathematical sciences\") or (((\"based mathematical sciences\") OR (\"basic mathematical sciences\"))))".
• Removing quotes may allow a broader search: (( advanced mathematical sciences ) or ((( based mathematical sciences ) OR ( basic mathematical sciences )))).
• Adding a wildcard symbol may retrieve word variants: (("advanced mathematical sciences") or ((("based mathematical sciences") OR ("basic mathematical sciences"))))*.