Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
manh tung » manh hung, thanh tung
cua thong » cua thuong, cua khong, cua tong
cong tuan » cong tan, cong luan, cong thanh
tuan van » luan van, tran van, tan van
van tai » von tai, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((canh tranh) or (manh tung)) cua thong cong tuan van tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((canh tranh) OR (manh tung)) cua thong cong tuan van tai.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((canh tranh) or (manh tung)) cua thong cong tuan van tai*.