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