Perhaps you should try some spelling variations:
chieu xanh » chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, hieu cach
chieu sang » hieu lang, nhieu tang
thong cong » trong cong, tong cong, thong thong
hanh hang » thanh hang, hang hang, hanh han
va thong » va thuong, va phuong, he thong
cong san » cong tac
san than » sang than, san thanh, ban than
than cao » toan cao, thai cao, than cap

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 sach) OR (chieu sang)))) - hanh hang va thong cong san than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (((chieu sach) OR (chieu sang)))) - hanh hang va thong cong san than cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (((chieu sach) OR (chieu sang)))) - hanh hang va thong cong san than cao*".