Perhaps you should try some spelling variations:
land books » hand books, land banks, law books
human land » human brand, human demand
yang yang » wang yang
books wai » books what, books a, books ii
yang fan » zhang fan, yang dean, yang jin
1 human » 2 human, 3 human
wai yan » wei yang
yan kun » yan guan, yan yuan

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: ((((yang fan) OR (((yang yang) OR (wang yan))))) OR (yang di))nr 1 human land books wai yan kun ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang fan) or (((yang yang) OR (wang yan))))) or (yang di))nr 1 human land books wai yan kun ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yang fan) or (((yang yang) OR (wang yan))))) or (yang di))nr 1 human land books wai yan kun ;*.