Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
doan thi » dan thi, doanh tai, hoang thi
thi manh » thi hanh, thi minh, thi anh
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doan thi manh - ((canh tranh) or (hanh chinh)) va thong cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doan thi manh - ((canh tranh) OR (hanh chinh)) va thong cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: doan thi manh - ((canh tranh) or (hanh chinh)) va thong cong dan toan tap*.