Perhaps you should try some spelling variations:
2c metallurgy » 27 metallurgy, 2 metallurgy, _ metallurgy
2c metal » c metal, ic metal, sc metal
28 maii » 28 mai, 28 main, 8 maii
25 maii » 25 mai, 25 main, 26 maii
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%((((2 mali) OR (28 maii))) OR (25 maii))%a thesis%_ archaeometallurgy%2c metal%22.
• Adding a wildcard symbol may retrieve word variants: %22archaeology%2c metallurgy%((((2 mali) or (28 maii))) or (25 maii))%a thesis%_ archaeometallurgy%2c metal%22*.