Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
canh trinh » canh tranh, hanh trinh, canh tinh
cong vang » cong lang, cong quang, cong ngang
thanh chu » thanh chau, thanh cha, thanh thu
hanh cham » thanh cham, thanh pham, khanh pham
toc hieu » toc thieu, doc hieu, hoc thieu
tam hung » tam huong, cam hung, ham hung
tai hung » mai hung, tai phuong, tai thuong

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 ((tam hung) OR (tai hung)) cong vang ((thanh chu) or (hanh cham))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu nganh - canh trinh ((tam hung) OR (tai hung)) cong vang ((thanh chu) OR (hanh cham))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc hieu nganh - canh trinh ((tam hung) OR (tai hung)) cong vang ((thanh chu) or (hanh cham))*".