Perhaps you should try some spelling variations:
gender wages » gender images, gender age, gender water
gender wage » gender based
yang liang » wang liang, yan liang, yang yang
wang yang » wang yan, wang liang, wang yanling
date sub » data sub, case sub, note sub
die spur » der spur
liang 2 » liang _, jiang 29, liang li

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 liang 2 ((gender wages) OR (gender wage)) latin ((date sub) or (die spur)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang liang 2 ((gender wages) OR (gender wage)) latin ((date sub) OR (die spur)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang liang 2 ((gender wages) OR (gender wage)) latin ((date sub) or (die spur)) ;*".