Perhaps you should try some spelling variations:
training costs » trading costs, training courses, training course
training cost » training course, training courses
housing shu » housing south, housing study, housing asia
dong sind » dong sin, dong bin, dong ping
ka a » kai a, a a, k a
a re » _ re, a e, 2 re
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yan) or (dong sind)) ka a re ((training cost) OR (training costs)) housing shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yan) OR (dong sind)) ka a re ((training cost) OR (training costs)) housing shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yan) or (dong sind)) ka a re ((training cost) OR (training costs)) housing shu ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yan) or (dong sind)) ka a re ((training cost) OR (training costs)) housing shu ;*.