Perhaps you should try some spelling variations:
calle child » all child, care child, cause child
fur langer » fur lander, fur langs, wer langer
yan liang » yang liang, wang liang, you liang
child der » child does, child did, child gender
der klang » der klange, den klang, des klangs
du langer » 3 langer
yan guan » gan guan, yan yuan, yang guang

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: ((yan liang) OR (yan guan)) calle child der klang ((du langer) OR (fur langer)) a ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (yan guan)) calle child der klang ((du langer) OR (fur langer)) a ;~".
• Adding a wildcard symbol may retrieve word variants: ((yan liang) or (yan guan)) calle child der klang ((du langer) OR (fur langer)) a ;*.