Perhaps you should try some spelling variations:
using schwartz » using chart, using charts
usage using » usage housing, usage rising, stage using
time usage » time use, home usage, time age
tao yang » yao yang, tan yang, xiao yang
tan yong » tan kong, tan yang, tan ying
robert j » robert _, robert e
ii time » iii time, ii theme

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tao yang) OR (((tan yong) OR (tan hong)))) ii time usage using schwartz robert j ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tao yang) or (((tan yong) OR (tan hong)))) ii time usage using schwartz robert j ;~".
• Adding a wildcard symbol may retrieve word variants: ((tao yang) or (((tan yong) OR (tan hong)))) ii time usage using schwartz robert j ;*.