Perhaps you should try some spelling variations:
2.2 archaeometallurgy » 10 archaeometallurgy, social archaeometallurgy
1 archaeometallurgy » 10 archaeometallurgy, archaeometallurgy _, _ archaeometallurgical
_ archaeometallurgy » _ archaeometallurgical, archaeometallurgy _
2c thesis » 2 thesis, _ thesis, a thesis
2 maldi » 12 maldi, 27 maldi, _ maldi
c metal » sic metal, c methyl

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: %22archaeology%_ metallurgy%2 maldi%2c thesis%((1 archaeometallurgy) OR (((2.2 archaeometallurgy) OR (_ archaeometallurgy))))%c metal%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22archaeology%_ metallurgy%2 maldi%2c thesis%((1 archaeometallurgy) or (((2.2 archaeometallurgy) OR (_ archaeometallurgy))))%c metal%22".
• Adding a wildcard symbol may retrieve word variants: %22archaeology%_ metallurgy%2 maldi%2c thesis%((1 archaeometallurgy) or (((2.2 archaeometallurgy) OR (_ archaeometallurgy))))%c metal%22*.