Perhaps you should try some spelling variations:
training risk » trading risk, training crisis, defining risk
training cost » training costs, training course, training courses
equal credit » dual credit, equity credit, rural credit
wang yang » wang liang, wang yanling
long shu » cong shu, tong shui, long du
y equal » _ equal, 6 equal, e equals

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 (wang yan)) y equal credit ((training risk) OR (training cost)) long shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) OR (wang yan)) y equal credit ((training risk) OR (training cost)) long shu ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) OR (wang yan)) y equal credit ((training risk) OR (training cost)) long shu ;*.