Perhaps you should try some spelling variations:
gender codes » gender cops, gender class, gender order
gender index » reider index, general index, gender gender
wang yang » wang yan, wang liang, wang yanling
malta die » falta de, data die, malta eiu
yang dan » yang dean, yang fan, wang dan
die spur » der spur

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang dan z ((gender codes) OR (gender index)) malta die spur ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang dan z ((gender codes) OR (gender index)) malta die spur ;*".