Perhaps you should try some spelling variations:
planning cost » planning case
training cost » training costs, training course, training courses
computing shu » computing lhc, computing self, computing _
dual credit » rural credit, deals credit, equal credit
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang, wang yan

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: ((dong yang) OR (yang yang)) yala dual credit ((planning cost) OR (training cost)) computing shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) or (yang yang)) yala dual credit ((planning cost) OR (training cost)) computing shu ;~".
• Adding a wildcard symbol may retrieve word variants: ((dong yang) or (yang yang)) yala dual credit ((planning cost) OR (training cost)) computing shu ;*.