Perhaps you should try some spelling variations:
sc metallurgy » _ metallurgy, 27 metallurgy, 10 metallurgy
sc metal » sic metal, c metal, ic metal
25 main » 25 min, 25 mai, 25 marine
26 maii » 26 mai, 26 martii
2 maldi » 12 maldi, 27 maldi, _ maldi
25 maii » 25 mai, 15 maii, 20 maii
2 maii » 20 maii, 28 maii, 29 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%sc metallurgy%((((2 maldi) OR (((2 maii) OR (((25 maii) OR (25 main))))))) OR (26 maii))%a thesis%_ archaeometallurgy%sc metal%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22archaeology%sc metallurgy%((((2 maldi) or (((2 maii) or (((25 maii) OR (25 main))))))) or (26 maii))%a thesis%_ archaeometallurgy%sc metal%22".
• Adding a wildcard symbol may retrieve word variants: %22archaeology%sc metallurgy%((((2 maldi) or (((2 maii) or (((25 maii) OR (25 main))))))) or (26 maii))%a thesis%_ archaeometallurgy%sc metal%22*.