Perhaps you should try some spelling variations:
thin jeng » thin end, thin lens
last thin » last thing, last things
jeng dong » eng hong, zeng doug
dong sind » dong sin, dong bin, dong ping
lang yan » wang yan, wang yang, zhang yan
yang lin » yang jin, wang lin, yang liang
yang li » yang xi, yang yi, tang li

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan ((((yang li) OR (yang lin))) or (yang di)) last thin jeng dong sind ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan ((((yang li) OR (yang lin))) OR (yang di)) last thin jeng dong sind ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan ((((yang li) OR (yang lin))) or (yang di)) last thin jeng dong sind ;*".