Perhaps you should try some spelling variations:
dong hoang » hong hong
wang liang » wang yang
dong yang » wang yang, yang yang, dan yang
hua irene » hua ren
irene yan » irene a, ren yan
thi cong » thi hong, thi mong, li cong
yan thi » yan zhi, tran thi, dang thi

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) or (wang liang))) or (dong hoang)) ya hua irene yan thi cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((dong yang) OR (wang liang))) OR (dong hoang)) ya hua irene yan thi cong shu ;.
• Adding a wildcard symbol may retrieve word variants: ((((dong yang) or (wang liang))) or (dong hoang)) ya hua irene yan thi cong shu ;*.