Perhaps you should try some spelling variations:
nghiep thanh » nghiep chan, nghiep minh, nghiep luan
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trong » anh trong, hinh trong, chinh trong
hanh trang » thanh trung, canh tranh, hanh trinh
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, 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: hoc ((thieu xanh) OR (chieu xanh)) - ((hanh trong) or (hanh trang)) nghiep thanh cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - ((hanh trong) OR (hanh trang)) nghiep thanh cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - ((hanh trong) or (hanh trang)) nghiep thanh cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - ((hanh trong) or (hanh trang)) nghiep thanh cong dan toan cau*.