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• Performing a fuzzy search may retrieve terms with similar spellings: (("india of south america health and hygiene") OR ("india of south american health and hygiene"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"india of south america health and hygiene\") OR (\"india of south american health and hygiene\"))*".
• Removing quotes may allow a broader search: (( india of south america health and hygiene ) OR ( india of south american health and hygiene ))*.