Perhaps you should try some spelling variations:
khong duong » khong dung, thong duong, khong dong
khong xuong » khong dung, hong vuong, thong duong
theo chieu » theo tieu, ho chieu, theo chu
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
manh toan » thanh toan, anh tuan, tinh toan
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: ((toc thieu) or (theo chieu)) xanh - hanh trinh cua ((khong duong) OR (khong xuong)) manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (theo chieu)) xanh - hanh trinh cua ((khong duong) OR (khong xuong)) manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc thieu) or (theo chieu)) xanh - hanh trinh cua ((khong duong) OR (khong xuong)) manh toan ban".
• Adding a wildcard symbol may retrieve word variants: ((toc thieu) or (theo chieu)) xanh - hanh trinh cua ((khong duong) OR (khong xuong)) manh toan ban*.