Perhaps you should try some spelling variations:
dang thuong » dung thuong, dong thuong, nang thuong
thuong cong » thong cong, thuong con, thuong dong
theo chieu » theo tieu, ho chieu, theo chu
cua thuong » cua truong, cua phuong, ca thuong
tranh cua » doanh cua, manh cua
doc hieu » toc thieu, hoc thieu, hoc hien

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) or (theo chieu)) xanh - canh tranh cua thuong cong ((dang thuong) OR (hang thuong)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (theo chieu)) xanh - canh tranh cua thuong cong ((dang thuong) OR (hang thuong)) cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (theo chieu)) xanh - canh tranh cua thuong cong ((dang thuong) OR (hang thuong)) cap".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (theo chieu)) xanh - canh tranh cua thuong cong ((dang thuong) OR (hang thuong)) cap*.