Perhaps you should try some spelling variations:
"i teaching resources studies." » "i learning resources studies.", "i teaching resource studies.", "i teaching resources series.", "i teaching resonance studies.", "ii teaching resources studies.", "1 teaching resources studies.", "3 teaching resources studies."
"risk training resources settings." » "risk learning resources settings.", "risk training resource settings.", "risk training resources setting.", "risk training resourced settings.", "risk taking resources settings.", "bank training resources settings.", "risk planning resources settings."

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

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