Perhaps you should try some spelling variations:
recognizing handling » recognizing standing, recognizing hand, recognizing modeling
springer kremser » springers grosser, springer brenden
springer einer » springer eine, springen eine, erbringer einer
handling ph.d » handling php, handling phase, handling photo

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