Perhaps you should try some spelling variations:
life using » life during
using data » missing data
yang yang » wang yang, wang yan
data don » data do, data den, data does
don chen » done when, goh chen, don ce
yong jin » yang jin, ying jin, song jin
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang xi, yang yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: life using data don chen ((yong jin) OR (yang jun)) ((((yang yang) OR (yang jui))) OR (yang di)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "life using data don chen ((yong jin) OR (yang jun)) ((((yang yang) OR (yang jui))) OR (yang di)) ;*".