Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
hoc chieu » hoc thieu, ho chieu, hoc hien
nam thang » nam thanh, nam trong, nam trung
hach toan » thanh toan
manh toan » thanh toan, anh tuan, tinh toan
tam hang » pham hang, tam huong, thai hang

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 - hanh trang ((tam hang) or (nam thang)) cong ((hach toan) OR (manh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh trang ((tam hang) OR (nam thang)) cong ((hach toan) OR (manh toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh trang ((tam hang) or (nam thang)) cong ((hach toan) OR (manh toan)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trang ((tam hang) or (nam thang)) cong ((hach toan) OR (manh toan)) ban*.