Perhaps you should try some spelling variations:
12 metallurgy » 10 metallurgy, 11 metallurgy, 10.2 metallurgy
2 metallurgy » 27 metallurgy, _ metallurgy, 4 metallurgy
a thesis » _ thesis
2c metal » c metal, ic metal, sc metal
25 maii » 25 mai, 25 main, 26 maii
2 mali » 2 maldi, 2 male
2 maii » 26 maii, 20 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%((2 metallurgy) OR (12 metallurgy))%((((2 mali) OR (2 maii))) OR (25 maii))%a thesis%_ archaeometallurgy%2c metal%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22archaeology%((2 metallurgy) OR (12 metallurgy))%((((2 mali) or (2 maii))) or (25 maii))%a thesis%_ archaeometallurgy%2c metal%22".
• Adding a wildcard symbol may retrieve word variants: %22archaeology%((2 metallurgy) OR (12 metallurgy))%((((2 mali) or (2 maii))) or (25 maii))%a thesis%_ archaeometallurgy%2c metal%22*.