Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hieu nganh » vien nganh, hiem ngan, hieu manh
trung cua » truong cua, trung tuan, trung cap
doc hieu » toc thieu, hoc thieu, hoc hien
manh cua » doanh cua, ban cua
cong tac » cong ty
tac danh » sach danh, cac doanh, cac dan

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 nganh - hanh ((trung cua) or (manh cua)) thuong cong tac danh cho~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu nganh - hanh ((trung cua) OR (manh cua)) thuong cong tac danh cho.
• Adding a wildcard symbol may retrieve word variants: doc hieu nganh - hanh ((trung cua) or (manh cua)) thuong cong tac danh cho*.