Perhaps you should try some spelling variations:
savings using » mappings using, settings using, things using
control bi » control b, control 4, control 3
wang yang » wang yan, wang liang, wang yanling
yang fang » yang yang, yang fan, yang guang
di cristo » di crisi, di costo
ii cost » ii cos, ii cross, di costo

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 fang ((ii cost) or (di cristo)) savings using ((control bi) OR (control 5)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang fang ((ii cost) OR (di cristo)) savings using ((control bi) OR (control 5)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang fang ((ii cost) or (di cristo)) savings using ((control bi) OR (control 5)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yang fang ((ii cost) or (di cristo)) savings using ((control bi) OR (control 5)) ;*.