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

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%((27 metallurgy) OR (_ metallurgy))%2 maldi%a thesis%((2.2 archaeometallurgy) OR (_ archaeometallurgy))%sc metal%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22archaeology%((27 metallurgy) OR (_ metallurgy))%2 maldi%a thesis%((2.2 archaeometallurgy) or (_ archaeometallurgy))%sc metal%22".
• Adding a wildcard symbol may retrieve word variants: %22archaeology%((27 metallurgy) OR (_ metallurgy))%2 maldi%a thesis%((2.2 archaeometallurgy) or (_ archaeometallurgy))%sc metal%22*.