Perhaps you should try some spelling variations:
last testing » test testing, castor testing, light testing
wang liang » wang yang
using data » missing data
data bank » data book, data base, pada bank
tan ying » fan ying, ran ying, tan yang
yang yi » yang di, yang xi, yang jui
judy » july

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang liang) OR (tan ying)) ((yang yi) OR (yang judy)) last testing using data bank ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang liang) OR (tan ying)) ((yang yi) OR (yang judy)) last testing using data bank ;*.