Perhaps you should try some spelling variations:
2c archaeometallurgy » 2.2 archaeometallurgy, _ archaeometallurgy, 1 archaeometallurgy
2c metallurgy » 27 metallurgy, 2 metallurgy, _ metallurgy
a thesis » _ thesis
2c metal » c metal, ic metal, sc metal
26 maii » 26 mai, 26 martii
2 mali » 2 maldi, 2 male
2 maii » 20 maii, 25 maii, 28 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%((((2 mali) OR (2 maii))) OR (26 maii))%a thesis%2c archaeometallurgy%2c metal%22.
• Adding a wildcard symbol may retrieve word variants: %22archaeology%2c metallurgy%((((2 mali) or (2 maii))) or (26 maii))%a thesis%2c archaeometallurgy%2c metal%22*.