Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
test gain » heat gain, test gap, test gas
shang hai » shang kai, dang hai, hong hai
lag test » lag heat
chang ha » chang mae
man lag » man lara
yang xi » yang yi, yang jui
kann » ann

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

• Performing a fuzzy search may retrieve terms with similar spellings: kann man lag test gain ((yang liang) or (((yang xi) or (yang di)))) ((shang hai) or (chang ha)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: kann man lag test gain ((yang liang) OR (((yang xi) OR (yang di)))) ((shang hai) OR (chang ha)) ;.
• Adding a wildcard symbol may retrieve word variants: kann man lag test gain ((yang liang) or (((yang xi) or (yang di)))) ((shang hai) or (chang ha)) ;*.