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