Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trinh » canh tranh, hanh chinh
trinh chuc » trinh thuc, trinh chu, trinh phuc
doi chieu » doc hieu, doi chi, ho chieu
chuc dang » chuc nang, chuc danh, thuoc dang
dang cong » dung cong
cong san » cong tac
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - hanh trinh chuc dang cong san ((toan tap) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh trinh chuc dang cong san ((toan tap) OR (van ban))*.