Perhaps you should try some spelling variations:
recognizing standing » recognizing handling, recognizing strong, recognizing learning
recognizing string » recognizing strong, recognizing seizing, recognizing using
springer theses » springer thomas, springer theory, springer kremser
springer einer » springer eine, springen eine, erbringer einer

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((springer theses) OR (springer einer)), ((recognizing standing) OR (recognizing string)) army. research".
• Adding a wildcard symbol may retrieve word variants: ((springer theses) OR (springer einer)), ((recognizing standing) OR (recognizing string)) army. research*.