Perhaps you should try some spelling variations:
doing assuring » pigging assuring
assuring data » ensuring data, assessing data, acquiring data
wang yang » wang yan, wang liang, wang yanling
jie start » we start, big start, i start
data base » data based
yin hang » yin fang, yin yang, ying chang
yang jie » yang jin, yang di, yang jui

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) or (yin hang)) yang jie start doing assuring data base ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (yin hang)) yang jie start doing assuring data base ;*.