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