Perhaps you should try some spelling variations:
"german ethnicity questions." » "german ethnicity question.", "german ethical questions.", "german ethnic question.", "german authenticity questions.", "gender ethnicity questions.", "given ethnicity questions."
"given ethnic relations." » "given economic relations.", "given public relations.", "given ethnicity relations.", "level ethnic relations.", "iv ethnic relations."
"cohen ethnic relations." » "cohen economic relations.", "cohen public relations.", "co ethnic relations.", "other ethnic relations."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("given ethnic relations.") OR ("cohen ethnic relations."))) or ("german ethnicity questions."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("given ethnic relations.") OR ("cohen ethnic relations."))) OR ("german ethnicity questions.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"given ethnic relations.\") OR (\"cohen ethnic relations.\"))) or (\"german ethnicity questions.\"))".
• Removing quotes may allow a broader search: (((( given ethnic relations. ) OR ( cohen ethnic relations. ))) or ( german ethnicity questions. )).
• Adding a wildcard symbol may retrieve word variants: (((("given ethnic relations.") OR ("cohen ethnic relations."))) or ("german ethnicity questions."))*.