Perhaps you should try some spelling variations:
nganh thanh » nhanh thanh, danh thanh, nhanh thang
thieu tinh » trieu tinh, chieu tinh, thien tinh
duong dong » duong cong, duong hong, tuong dong
hoc thieu » toc thieu, hoc hien
tranh van » tran van, trinh van, thanh van
dung dong » dung cong, vung dong, dung trong
thanh tap » thanh lap, thanh tai, thanh tay

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tinh - canh tranh van ((duong dong) or (dung dong)) nganh thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - canh tranh van ((duong dong) OR (dung dong)) nganh thanh tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh tranh van ((duong dong) or (dung dong)) nganh thanh tap*.