Perhaps you should try some spelling variations:
"white collars crime" » "white hollar crime", "white cells crime", "white coats crime", "white collarless crime"
"while collar crimes" » "while call crimes", "while cold crimes"
"while collar crime" » "while call crime", "while cold crime"

Try widening your search to All Fields.

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: (("while collar crimes") OR ((((("while collar crime") OR ("white collar crime"))) OR ("white collars crime")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"while collar crimes\") or (((((\"while collar crime\") OR (\"white collar crime\"))) or (\"white collars crime\"))))".
• Removing quotes may allow a broader search: (( while collar crimes ) or ((((( while collar crime ) OR ( white collar crime ))) or ( white collars crime )))).
• Adding a wildcard symbol may retrieve word variants: (("while collar crimes") or ((((("while collar crime") OR ("white collar crime"))) or ("white collars crime"))))*.