Perhaps you should try some spelling variations:
"WBI teaching resources surveys." » "WBI teaching resource survey.", "WBI teaching resources series.", "WBI teaching resources systems."
"WBI learning resources surveys." » "WBI learning resource survey.", "WBI learning resources series.", "WBI learning resources systems."
wbi teaching » ii teaching, i teaching, iii teaching
wbi learning » 2 learning, 3 learning, 4 learning

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("WBI teaching resources surveys.") OR ("WBI learning resources surveys."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"WBI teaching resources surveys.\") OR (\"WBI learning resources surveys.\"))".
• Removing quotes may allow a broader search: (( WBI teaching resources surveys. ) OR ( WBI learning resources surveys. )).
• Adding a wildcard symbol may retrieve word variants: (("WBI teaching resources surveys.") OR ("WBI learning resources surveys."))*.