Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
canh trinh » canh tranh, hanh trinh, canh tinh
phung cong » nhung cong, phong cong, nhung chong
thanh chau » thanh cha, thanh cham, thanh chu
trinh tai » trinh toan, trinh tu, trinh han
hung cong » nhung cong, hung cuong, dung cong
hanh cham » thanh cham, thanh pham, khanh pham
toc hieu » toc thieu, doc hieu, hoc thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu nganh - canh trinh tai ((hung cong) OR (phung cong)) van ((thanh chau) or (hanh cham))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu nganh - canh trinh tai ((hung cong) OR (phung cong)) van ((thanh chau) OR (hanh cham))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc hieu nganh - canh trinh tai ((hung cong) OR (phung cong)) van ((thanh chau) or (hanh cham))*".