Perhaps you should try some spelling variations:
ylang ylang » yang yang, lang lang
chen chang » chen chung, chin chang, shen chang
chang boon » chang soon, cheng boon, chang won
lang wang » lang lang, hong wang, ping wang
chong yu » chong yun, hong yu, chang yun
chong yi » chong yah, chong yun, hong yu
di chen » yi chen, li chen, jui chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((lang wang) or (ylang ylang)) yang di chen chang boon ((chong yu) OR (chong yi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((lang wang) OR (ylang ylang)) yang di chen chang boon ((chong yu) OR (chong yi)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang wang) or (ylang ylang)) yang di chen chang boon ((chong yu) OR (chong yi)) ;".
• Adding a wildcard symbol may retrieve word variants: ((lang wang) or (ylang ylang)) yang di chen chang boon ((chong yu) OR (chong yi)) ;*.