Perhaps you should try some spelling variations:
"food science text searches" » "food science text search", "food science text searching", "food science texts searches", "food science team searches", "food science context searches"
"food science ten searches" » "food science gene searches", "food science web searches", "food science lep searches", "food science thin searches", "food science team searches", "food science two searches"
"food science knn searches" » "food science knn search", "food science line searches", "food science gene searches", "food science kann searches", "food science ken searches", "food science kant searches"

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: (("food science text searches") OR ((("food science ten searches") OR ("food science knn searches")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"food science text searches\") or (((\"food science ten searches\") OR (\"food science knn searches\"))))".
• Removing quotes may allow a broader search: (( food science text searches ) or ((( food science ten searches ) OR ( food science knn searches )))).
• Adding a wildcard symbol may retrieve word variants: (("food science text searches") or ((("food science ten searches") OR ("food science knn searches"))))*.