Perhaps you should try some spelling variations:
nganh thanh » nhanh thanh, danh thanh, nhanh thang
chieu tinh » trieu tinh, lieu tinh, chau tinh
duong dong » duong cong, duong hong, tuong dong
tranh van » tran van, trinh van, thanh van
dung dong » dung cong, vung dong, dung trong
thanh lap » thanh san, phan lap, thanh hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot chieu tinh - canh tranh van ((duong dong) or (dung dong)) nganh thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot chieu tinh - canh tranh van ((duong dong) OR (dung dong)) nganh thanh lap*.