Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trang » thanh trung, hanh trinh, minh trang
nhung cong » dung cong, thong cong, hang cong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
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: ho chieu sang - ((hanh trang) OR (canh tranh)) cua ((nhung cong) or (nhung phuong)) manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((hanh trang) OR (canh tranh)) cua ((nhung cong) OR (nhung phuong)) manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((hanh trang) OR (canh tranh)) cua ((nhung cong) or (nhung phuong)) manh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((hanh trang) OR (canh tranh)) cua ((nhung cong) or (nhung phuong)) manh toan cau*.