Perhaps you should try some spelling variations:
historia antiguo » historia antigua, historia santiago, historia antonio
mineria antigua » hitoria antigua, india antigua, moneda antigua
en debate » el debate, un debate
de debate » del debate, el debate, un debate
ideas en » ideas y
ideas de » idea de, ideas y

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: (( ideas en debate. historia antiguo-moderna ) OR ( ideas de debate. mineria antigua-moderna ))~.
• Adding a wildcard symbol may retrieve word variants: (( ideas en debate. historia antiguo-moderna ) or ( ideas de debate. mineria antigua-moderna ))*.