Perhaps you should try some spelling variations:
2.2 archaeometallurgy » _ archaeometallurgy, 1 archaeometallurgy, 10 archaeometallurgy
2c archaeometallurgy » _ archaeometallurgy, 1 archaeometallurgy, 10 archaeometallurgy
2c thesis » 2 thesis, _ thesis, a thesis
ic metal » tic metal, sc metal, wc metal
c metal » c methyl
2 maii » 26 maii, 20 maii, 25 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 (c metal))) OR (sic metal))lurgy%2 maii%2c thesis%((2c archaeometallurgy) OR (2.2 archaeometallurgy))%((((ic metal) OR (c metal))) OR (sic metal))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22archaeology%((((ic metal) or (c metal))) or (sic metal))lurgy%2 maii%2c thesis%((2c archaeometallurgy) OR (2.2 archaeometallurgy))%((((ic metal) or (c metal))) or (sic metal))%22".
• Adding a wildcard symbol may retrieve word variants: %22archaeology%((((ic metal) or (c metal))) or (sic metal))lurgy%2 maii%2c thesis%((2c archaeometallurgy) OR (2.2 archaeometallurgy))%((((ic metal) or (c metal))) or (sic metal))%22*.