Perhaps you should try some spelling variations:
truong manh » truong minh, truong anh, truong oanh
truong danh » truong dinh, truong anh, truong dang
thang long » thanh cong
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
long quan » luong quan, long quang, tong quan
quan xuan » quang xuan, quan luan, quan quan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (hieu manh)) - thang long quan xuan ((truong manh) OR (truong danh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu manh)) - thang long quan xuan ((truong manh) OR (truong danh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) or (hieu manh)) - thang long quan xuan ((truong manh) OR (truong danh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (hieu manh)) - thang long quan xuan ((truong manh) OR (truong danh)) toan cau*.