Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trinh » canh tranh, hanh chinh
trinh han » trinh quan
ho chieu » theo chieu, hoc thieu, doi chieu
van cong » van dong, van phong, phan cong
cong tan » cong tac, cong san, cong thanh
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
han van » phan van, nhan van, hanh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - hanh trinh han van cong tan ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh trinh han van cong tan ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh trinh han van cong tan ((toan cau) or (toan cao))*.