Perhaps you should try some spelling variations:
"nigerian languages" » "iberian languages", "german languages", "indian languages"
"bulgarien langue" » "bulgarian language", "bulgarian labour", "bulgarien anno"
"nigeria language" » "sumerian language", "india language"
"media language" » "medical language", "meta language", "indian language"
"bulgare langue" » "bulgarie langue", "vulgare langue", "bulgaria langue"

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: (((("bulgare langue") OR ("bulgarien langue"))) OR ((((("nigeria language") OR ("media language"))) OR ("nigerian languages")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"bulgare langue\") OR (\"bulgarien langue\"))) or (((((\"nigeria language\") or (\"media language\"))) or (\"nigerian languages\"))))".
• Removing quotes may allow a broader search: (((( bulgare langue ) OR ( bulgarien langue ))) or ((((( nigeria language ) or ( media language ))) or ( nigerian languages )))).
• Adding a wildcard symbol may retrieve word variants: (((("bulgare langue") OR ("bulgarien langue"))) or ((((("nigeria language") or ("media language"))) or ("nigerian languages"))))*.