Perhaps you should try some spelling variations:
2.2 archaeometallurgy » _ archaeometallurgy, 1 archaeometallurgy, 10 archaeometallurgy
2c metallurgy » 2 metallurgy, _ metallurgy, 10 metallurgy
27 metallurgy » _ metallurgy
2c metal » c metal, ic metal, sc 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 metallurgy) OR (27 metallurgy))%2 mali%_ thesis%2.2 archaeometallurgy%2c metal%22.
• Adding a wildcard symbol may retrieve word variants: %22archaeology%((2c metallurgy) or (27 metallurgy))%2 mali%_ thesis%2.2 archaeometallurgy%2c metal%22*.