Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh trinh » canh tranh, hanh chinh
huong manh » duong manh, hung manh, luong manh
chua bang » chu bang, chua nang, chua xang
manh toan » thanh toan, anh tuan, tinh toan
cua bang » cua ban, cua dang, cua hang
toan ban » van ban

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

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