Perhaps you should try some spelling variations:
rating costs » trading costs, roaming costs, operating costs
rising costs » rising cost, driving costs, firing costs
dong yang » dong hoang, wang yang, yang yang
tong shui » tong hui, cong shu, gong hui
wong shiu » wong siu, cong shu, song shin
maha » maya, mara, taha

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 maha 2 credit ((rating costs) OR (rising costs)) ((tong shui) or (wong shiu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang maha 2 credit ((rating costs) OR (rising costs)) ((tong shui) OR (wong shiu)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yang maha 2 credit ((rating costs) OR (rising costs)) ((tong shui) or (wong shiu)) ;*".