Perhaps you should try some spelling variations:
luong thanh » long thanh, truong thanh
thanh done » than done, than one
done raum » den raum, die raum, ohne raum
yan yuan » yan guan, fang yuan, nan yan
yan can » yan clan, man can, yan cong
a gene » a genre, a gentle, a geneve
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 can) or (yan yuan)) ((a gene) or (a gender)) luong thanh done raum ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan can) OR (yan yuan)) ((a gene) OR (a gender)) luong thanh done raum ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yan can) or (yan yuan)) ((a gene) or (a gender)) luong thanh done raum ;*.