Perhaps you should try some spelling variations:
tranh quang » tran quang, trinh quang, tinh quang
hanh tranh » canh tranh, hanh trinh, hanh trang
thieu xanh » chieu xanh, thien anh, thien danh
quang dung » quang trung, ung dung, cuong dung
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong tac » cong ty
than cau » toan cau, phan cau, than cap

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