Perhaps you should try some spelling variations:
wang dinh » wang jing, wang ning, sang minh
dinh tuan » binh thuan, dinh tung, anh tuan
tuan hua » tan hua, tuan vu, yuan hui
tan yang » tan ying, tan yong, tao yang
dan yang » daun yang, wang yang, yang yang
hong hai » shang hai, zhong tai, dang hai
li hong » le hong, li cong, li rong

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang dinh tuan hua ((du yang) or (((tan yang) or (dan yang)))) li hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang dinh tuan hua ((du yang) OR (((tan yang) OR (dan yang)))) li hong hai ;*.