Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
best book » best foot, best boy, best tool
test book » text book, cost book, lost book
sheng suk » chong suk, sheng huo, sheng wu
shen guo » shen zuo, sheng huo, he guo
yang yi » yang di, yang xi, yang jui

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 yang yi ((best book) OR (test book)) chang ((sheng suk) or (shen guo)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yang yi ((best book) OR (test book)) chang ((sheng suk) OR (shen guo)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yang yi ((best book) OR (test book)) chang ((sheng suk) or (shen guo)) ;*".