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Search Tips - Help

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Broadening Searches

Sometimes a simple search produces a disappointing results list. The query may not locate any matching documents, the results list may be too short, or the documents in the results list may not contain the information you are looking for. In these instances, you may need to broaden your search in order to retrieve a more promising results list.

OR Operator

If your simple search has not produced a useful results list, you may have used the wrong term in your query. To increase the chances of finding a document that matches your query, you can use the OR operator with many synonymous or closely related terms. For example, if you want to retrieve documents concerning Essstörungen, enter this query:


The OR operator finds pages that match at least one of the terms in the query. You may find documents that match Magersucht or Bulimie or Anorexia. The pages may also contain more than one term.

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Additional Information

Tip of the week: Some terms may have more than one meaning in a query. "Depression" can be the illness or the time of the Great Depression in the US. To get relevant results combining your search term with other words might help (Tip 11).

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