Perhaps you should try some spelling variations:
equal credit » dual credit, equity credit, rural credit
scale change » scale changes, shape change, scale chapter
change shu » change saul, change sea, change six
yang yang » wang yang, wang yan
done sin » dong sin, done using, done fix
a equal » _ equal, 6 equal, can equal

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((done sin) OR (done so))) or (yang yang)) a equal credit rating scale change shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((done sin) OR (done so))) OR (yang yang)) a equal credit rating scale change shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((done sin) OR (done so))) or (yang yang)) a equal credit rating scale change shu ;*".