Perhaps you should try some spelling variations:
training course » training courses
training asia » training a, training malaysia
dual credit » rural credit, deals credit, equal credit
wang yang » wang yan, wang yanling
wong shiu » wong siu, cong shu, song shin
3 dual » _ dual, a dual

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang liang) OR (wang yang)) 3 dual credit ((training asia) or (training course)) wong shiu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang liang) OR (wang yang)) 3 dual credit ((training asia) OR (training course)) wong shiu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang liang) OR (wang yang)) 3 dual credit ((training asia) or (training course)) wong shiu ;*".