Perhaps you should try some spelling variations:
book chang » cook change, book chain, book can
yan liang » yang liang, wang liang, you liang
liang der » gang der, klang der, ding der
test book » best book, text book, cost book
sheng suk » sheng huo, sheng wu
chong suk » chong yun, cong sun, yong suk
der test » der tests, der text, per test
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan liang der test book chang ((sheng suk) or (chong suk)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan liang der test book chang ((sheng suk) OR (chong suk)) ;*.