Perhaps you should try some spelling variations:
2.2 archaeometallurgy » _ archaeometallurgy, 1 archaeometallurgy, 10 archaeometallurgy
2c archaeometallurgy » _ archaeometallurgy, 1 archaeometallurgy, 10 archaeometallurgy
2c thesis » 2 thesis, _ thesis, a thesis
2 themes » 1 themes, 6 themes, 3 themes
2c metal » c metal, ic metal, wc metal
27 maldi » 17 maldi, 2 maldi, 7 maldi
sc metal » sic metal, c metal, ic metal
2 mali » 2 maldi, 2 male, 2 maii

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