Perhaps you should try some spelling variations:
nghiep thanh » nghiep chan, nghiep minh, nghiep luan
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
hanh trong » hanh trang, anh trong, hinh trong
hanh trinh » canh tranh, hanh chinh
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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) OR (chieu sach)) - ((hanh trong) or (hanh trinh)) nghiep thanh cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - ((hanh trong) OR (hanh trinh)) nghiep thanh cong san toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chieu sach)) - ((hanh trong) or (hanh trinh)) nghiep thanh cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chieu sach)) - ((hanh trong) or (hanh trinh)) nghiep thanh cong san toan cau*.