Perhaps you should try some spelling variations:
22industrial hygiene » industry hygiene
_ industriehygiene » industry hygiene
2f france » 2 france, 27 france, 20 france
2f law » 20 law, 21 law, 28 law

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: %((((22industrial hygiene) OR (_ industriehygiene))) OR (industrial hygiene)) %2f law AND legislation %2f france%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22industrial hygiene) OR (_ industriehygiene))) or (industrial hygiene)) %2f law and legislation %2f france%22".
• Adding a wildcard symbol may retrieve word variants: %((((22industrial hygiene) OR (_ industriehygiene))) or (industrial hygiene)) %2f law and legislation %2f france%22*.