Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
cong san » cong tac
san van » tan van, luan van, tran van

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 thong cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (theo chieu)) xanh - hanh trinh cua thong cong san van ban*.