Perhaps you should try some spelling variations:
2.2 archaeometallurgy » _ archaeometallurgy, 1 archaeometallurgy, 10 archaeometallurgy
27 metallurgy » _ metallurgy
ssic metal » basic metal, ic metal, sc metal
sic metal » c metal
12 maldi » 16 maldi, 17 maldi, _ maldi
2 maldi » 27 maldi, _ maldi, a 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%((2 maldi) OR (12 maldi))%a thesis%2.2 archaeometallurgy%((ssic metal) OR (sic metal))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22archaeology%27 metallurgy%((2 maldi) OR (12 maldi))%a thesis%2.2 archaeometallurgy%((ssic metal) or (sic metal))%22".
• Adding a wildcard symbol may retrieve word variants: %22archaeology%27 metallurgy%((2 maldi) OR (12 maldi))%a thesis%2.2 archaeometallurgy%((ssic metal) or (sic metal))%22*.