Perhaps you should try some spelling variations:
ylang ylang » yang yang, lang lang
chin chang » china chang, chain change, china zhang
lang yang » wang yang, yang yang, lang lang
wang wong » wang yong, wang yang, wang jing
wang hong » wang yong, wang hyoung, wang lihong
yi chin » yi chen, ii china, chi chin

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: lang ((lang yang) OR (ylang ylang)) yi chin chang ((wang wong) OR (wang hong)) yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((lang yang) or (ylang ylang)) yi chin chang ((wang wong) OR (wang hong)) yue ;~".
• Adding a wildcard symbol may retrieve word variants: lang ((lang yang) or (ylang ylang)) yi chin chang ((wang wong) OR (wang hong)) yue ;*.