Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
van nang » van quang, van dong, van dung
cong van » cong vang, cong san, song van
va nang » da nang, cam nang, kha nang
ban cu » ban cua, ban cau, ban tu

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 xanh - hanh trinh ((va nang) or (van nang)) cong van ban cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh trinh ((va nang) OR (van nang)) cong van ban cu.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh trinh ((va nang) or (van nang)) cong van ban cu*.