Perhaps you should try some spelling variations:
recognizing standing » recognizing handling, recognizing string, recognizing strong
springer kremser » springers grosser, springer brenden
springer einer » springer eine, springen eine, erbringer einer
standing ph.d » standing aupd, standing dead, standing his

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: ((springer kremser) OR (springer einer)), recognizing standing ph.d. research.
• Adding a wildcard symbol may retrieve word variants: ((springer kremser) or (springer einer)), recognizing standing ph.d. research*.