Perhaps you should try some spelling variations:
lanh tranh » canh tranh, lan tranh, hanh trinh
thieu xanh » chieu xanh, thien anh, thien danh
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
san phan » van phan, sat phan, dan phan

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 xanh) or (hieu manh)) - lanh tranh cua thong cong ((san phan) OR (san pham)) lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - lanh tranh cua thong cong ((san phan) OR (san pham)) lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (hieu manh)) - lanh tranh cua thong cong ((san phan) OR (san pham)) lap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - lanh tranh cua thong cong ((san phan) OR (san pham)) lap*.