Perhaps you should try some spelling variations:
gender land » gendered land, gender blind, gender law
wang man » wang ban, wang dan, wang yang
kann das » kann die, kann man, wenn das
land tax » land taxes
one mail » one mailer, e mail, one man
kann ja » kann man
tax one » tax money, tax code

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang man) OR (wang yan)) ((kann das) or (kann ja)) gender land tax one mail ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang man) OR (wang yan)) ((kann das) OR (kann ja)) gender land tax one mail ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang man) OR (wang yan)) ((kann das) or (kann ja)) gender land tax one mail ;*".