Perhaps you should try some spelling variations:
yang liang » wang liang, yang yang, peng liang
yan liang » wang liang, you liang, yan wang
thin jeng » thin end, thin lens
dong ping » dong bin, dong yang, ting ping
dong jung » hong jong, dong yang, von jung
a los » a low, _ los, y los
sin » sign, sind, skin

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yang liang) or (yan liang)) a los thin jeng ((((dong ping) or (dong jung))) or (dong sin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yang liang) OR (yan liang)) a los thin jeng ((((dong ping) OR (dong jung))) OR (dong sin)) ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yang liang) or (yan liang)) a los thin jeng ((((dong ping) or (dong jung))) or (dong sin)) ;*.