Perhaps you should try some spelling variations:
mappings using » mapping using, savings using
using control » losing control, dosing control, pumping control
control bi » control b, control 5, control 4
wang yong » wang yang, wang yan, wang shiyong
ii cost » ii cross, di costo
ii cos » ii co, ii cross, ii chaos

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yong) or (wang hyoung)) yang ((ii cost) or (ii cos)) mappings using control bi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yong) OR (wang hyoung)) yang ((ii cost) OR (ii cos)) mappings using control bi ;.
• Adding a wildcard symbol may retrieve word variants: ((wang yong) or (wang hyoung)) yang ((ii cost) or (ii cos)) mappings using control bi ;*.