Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu, hoc hien
va phuong » va thuong, cac phuong
doc hieu » toc thieu, hoc hien
va thong » va thuong, he thong, va cong
cong san » cong tac
san hang » san chang, ban hang, van hang
hang dau » hang va, hang tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) nganh - hanh trang ((va thong) OR (va phuong)) cong san hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) nganh - hanh trang ((va thong) OR (va phuong)) cong san hang dau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (hoc thieu)) nganh - hanh trang ((va thong) OR (va phuong)) cong san hang dau*".