Perhaps you should try some spelling variations:
"advances in spatial science, the regional science theory" » "advances in spatial science, the national science theory"
"advances in social science, the regional science theory" » "advances in social science, the national science theory", "advances in social sciences, the regional science theory"
"advances in spatial science, the regional scale theory" » "advances in spatial science, the regional scaling theory", "advances in spatial science, the regional simple theory", "advances in spatial science, the regional sample theory"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((("advances in spatial science, the regional science theory") OR ("advances in social science, the regional science theory"))) OR ("advances in spatial science, the regional scale theory")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"advances in spatial science, the regional science theory\") OR (\"advances in social science, the regional science theory\"))) or (\"advances in spatial science, the regional scale theory\"))".
• Removing quotes may allow a broader search: (((( advances in spatial science, the regional science theory ) OR ( advances in social science, the regional science theory ))) or ( advances in spatial science, the regional scale theory )).
• Adding a wildcard symbol may retrieve word variants: (((("advances in spatial science, the regional science theory") OR ("advances in social science, the regional science theory"))) or ("advances in spatial science, the regional scale theory"))*.