Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
tong cong » cong cong, dung cong, dang cong
dang hanh » dang thanh, ban hanh, dang van
toc hieu » toc thieu, doc hieu, hoc thieu
hanh cat » hanh cac, hanh luat, nhanh cay

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 - hanh trinh cua ((tong cong) or (trong cong)) dang hanh cat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu nganh - hanh trinh cua ((tong cong) OR (trong cong)) dang hanh cat*.