Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, hanh trang
huong manh » duong manh, hung manh, luong manh
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 tranh ((cua nhung) or (va nhung)) huong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh tranh ((cua nhung) OR (va nhung)) huong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh tranh ((cua nhung) or (va nhung)) huong manh toan cau*.