Perhaps you should try some spelling variations:
lang yanling » wang yanling, wang yangming, zhang yunling
among chong » among hong, ong chong, among school
using data » missing data
song chong » ong chong, hong hong, hong cheng
yang data » ring data, yang dali, yang maha
test ex » test bed, test bei

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yanling ((yang data) or (using data)) test ex ((among chong) OR (song chong)) suk ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yanling ((yang data) OR (using data)) test ex ((among chong) OR (song chong)) suk ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yanling ((yang data) or (using data)) test ex ((among chong) OR (song chong)) suk ;*".