Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh trinh » canh tranh, hanh chinh
nang cong » nang song, dang cong, bang cong
trinh va » trinh van, trinh vat, trinh ve
cong san » cong tac
san tuan » van tuan, san luan, san quan
tuan thu » toan thuc, van thu
va nang » van nang, da nang, cam nang

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) OR (chieu sang)) - hanh trinh va nang cong san tuan thu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) OR (chieu sang)) - hanh trinh va nang cong san tuan thu".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) OR (chieu sang)) - hanh trinh va nang cong san tuan thu*.