Perhaps you should try some spelling variations:
wang wang » wang liang, wang yan, wang yong
wang yang » wang yan, wang liang, wang yanling
song shu » cong shu, song shin, tong shui
yan zhi » wang zhi
gang li » gan li, tang li, wang li
li song » li cong, li rong, kim song
yan zi » yuan zi, ban zi

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: ((wang wang) OR (wang yang)) ((yan zi) OR (yan zhi)) (ren OR rent) gang li song shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang wang) or (wang yang)) ((yan zi) OR (yan zhi)) (ren or rent) gang li song shu ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang wang) or (wang yang)) ((yan zi) OR (yan zhi)) (ren or rent) gang li song shu ;*.