Perhaps you should try some spelling variations:
"international africa's economics series" » "international african economics series", "international prices economics series", "international airways economics series", "international africa's economic series", "international africa's economies series", "international africans economic series"
"international self autonomy series" » "international sale autonomy series", "international silk autonomy series", "international sales autonomy series", "international self astronomy series", "international self economy series", "international self autonomy states", "international user autonomy series"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("international self autonomy series") or ("international africa's economics series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international self autonomy series") OR ("international africa's economics series")).
• Removing quotes may allow a broader search: (( international self autonomy series ) or ( international africa's economics series )).
• Adding a wildcard symbol may retrieve word variants: (("international self autonomy series") or ("international africa's economics series"))*.