Perhaps you should try some spelling variations:
2c archaeometallurgy » 2.2 archaeometallurgy, _ archaeometallurgy, 1 archaeometallurgy
2c thesis » 2 thesis, _ thesis, my thesis
sic metal » c metal
a thesis » _ thesis
ic metal » tic metal, c metal, sc metal
25 maii » 25 mai, 25 main, 26 maii
2 maldi » 12 maldi, 27 maldi, _ maldi
2 mali » 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%((ic metal) OR (sic metal))lurgy%((((2 mali) OR (2 maldi))) OR (25 maii))%((2c thesis) OR (a thesis))%2c archaeometallurgy%((ic metal) OR (sic metal))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22archaeology%((ic metal) or (sic metal))lurgy%((((2 mali) OR (2 maldi))) or (25 maii))%((2c thesis) or (a thesis))%2c archaeometallurgy%((ic metal) or (sic metal))%22".
• Adding a wildcard symbol may retrieve word variants: %22archaeology%((ic metal) or (sic metal))lurgy%((((2 mali) OR (2 maldi))) or (25 maii))%((2c thesis) or (a thesis))%2c archaeometallurgy%((ic metal) or (sic metal))%22*.