Perhaps you should try some spelling variations:
2.2 archaeometallurgy » _ archaeometallurgy, 1 archaeometallurgy, 10 archaeometallurgy
2c thesis » 2 thesis, _ thesis, a thesis
c methyl » _ methyl, n methyl, 2 methyl
c metal » sic metal
2 maldi » 12 maldi, 27 maldi, _ maldi

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((c metal) OR (c methyl))) OR (((c metal) OR (c methyl))))lurgy%2 maldi%2c thesis%2.2 archaeometallurgy%((2((c metal) OR (c methyl))) OR (((c metal) OR (c methyl))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22archaeology%((2((c metal) OR (c methyl))) or (((c metal) OR (c methyl))))lurgy%2 maldi%2c thesis%2.2 archaeometallurgy%((2((c metal) OR (c methyl))) or (((c metal) OR (c methyl))))%22".
• Adding a wildcard symbol may retrieve word variants: %22archaeology%((2((c metal) OR (c methyl))) or (((c metal) OR (c methyl))))lurgy%2 maldi%2c thesis%2.2 archaeometallurgy%((2((c metal) OR (c methyl))) or (((c metal) OR (c methyl))))%22*.