Perhaps you should try some spelling variations:
test split » test salt, test slrt
dong yang » dong hoang, wang yang, yang yang
test sit » test site, test set, test sat
long shu » cong shu, tong shui, long du
wong sau » wong sam, wong siu, wong shiu
ka hua » ya hua, ka chuan
chuan » chan

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong yang ((ka hua) or (say chuan)) ((test split) OR (test sit)) minh ((long shu) or (wong sau)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang ((ka hua) OR (say chuan)) ((test split) OR (test sit)) minh ((long shu) OR (wong sau)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yang ((ka hua) or (say chuan)) ((test split) OR (test sit)) minh ((long shu) or (wong sau)) ;*".