Perhaps you should try some spelling variations:
"anthropology chavin" » "anthropology can", "anthropology chris", "anthropology chapter"
"anthropology alain" » "anthropology spain", "anthropology aat", "anthropology alps"
"anthropology david" » "anthropologist david", "anthropology based", "anthropology asia"

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: (((("anthropology alain") OR ("anthropology chavin"))) OR ("anthropology david")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"anthropology alain\") OR (\"anthropology chavin\"))) or (\"anthropology david\"))".
• Removing quotes may allow a broader search: (((( anthropology alain ) OR ( anthropology chavin ))) or ( anthropology david )).
• Adding a wildcard symbol may retrieve word variants: (((("anthropology alain") OR ("anthropology chavin"))) or ("anthropology david"))*.