Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chieu » theo tieu, ho chieu, thi chieu
duong manh » duong van
manh toan » thanh toan, anh tuan, tinh toan
theo chu » cho chu, chao chu, theo yeu
chu bang » thu bang, chu quang, chu trang
toan cau » toan cao, toan ban, toan tap
chuc » thuc, chua, phuc

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (theo chu)) xanh - hanh trinh ((chu bang) or (chuc nang)) duong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) xanh - hanh trinh ((chu bang) OR (chuc nang)) duong manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (theo chu)) xanh - hanh trinh ((chu bang) or (chuc nang)) duong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (theo chu)) xanh - hanh trinh ((chu bang) or (chuc nang)) duong manh toan cau*.