Perhaps you should try some spelling variations:
2.2 archaeometallurgy » _ archaeometallurgy, 1 archaeometallurgy, 10 archaeometallurgy
c metallurgy » _ metallurgy, 4 metallurgy, 2 metallurgy
v metallurgy » _ metallurgy, 4 metallurgy, 27 metallurgy
c metal » sic metal, c methyl
2 mali » 2 maldi, 2 male, 2 maii

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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