Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh tranh » canh tranh, hanh trinh, hanh trang
thong cong » trong cong, tong cong, thong thong
cong manh » cong danh, duong manh, cong thanh
tranh va » tranh van, trang va, trinh va
va thong » va thuong, va phuong, he thong
manh van » anh van, menh van, canh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (theo chieu)) xanh - hanh tranh va thong cong manh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (theo chieu)) xanh - hanh tranh va thong cong manh van ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (theo chieu)) xanh - hanh tranh va thong cong manh van ban*.