Perhaps you should try some spelling variations:
2.2 archaeometallurgy » _ archaeometallurgy, 1 archaeometallurgy, 10 archaeometallurgy
sc metallurgy » _ metallurgy, 27 metallurgy, 10 metallurgy
2c thesis » 2 thesis, _ thesis, a thesis
27 maldi » 17 maldi, 2 maldi, 7 maldi
sc metal » sic metal, c metal, ic metal

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%sc metallurgy%27 maldi%2c thesis%((archaeometallurgy _) OR (2.2 archaeometallurgy))%sc metal%22.
• Adding a wildcard symbol may retrieve word variants: %22archaeology%sc metallurgy%27 maldi%2c thesis%((archaeometallurgy _) or (2.2 archaeometallurgy))%sc metal%22*.