Perhaps you should try some spelling variations:
2c archaeometallurgy » 2.2 archaeometallurgy, _ archaeometallurgy, 1 archaeometallurgy
2c thesis » 2 thesis, _ thesis, a thesis
c methyl » _ methyl, n methyl, 2 methyl
12 maldi » 16 maldi, 17 maldi, _ maldi
c metal » sic metal
2 maldi » 27 maldi, _ maldi, a 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%((c metal) OR (c methyl))lurgy%((2 mali) OR (((2 maldi) OR (12 maldi))))%2c thesis%2c archaeometallurgy%((c metal) OR (c methyl))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22archaeology%((c metal) OR (c methyl))lurgy%((2 mali) or (((2 maldi) or (12 maldi))))%2c thesis%2c archaeometallurgy%((c metal) OR (c methyl))%22".
• Adding a wildcard symbol may retrieve word variants: %22archaeology%((c metal) OR (c methyl))lurgy%((2 mali) or (((2 maldi) or (12 maldi))))%2c thesis%2c archaeometallurgy%((c metal) OR (c methyl))%22*.