Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
dong cong » duong cong, dung cong, dang cong
hanh cham » thanh pham, hanh lam, hanh nam
doc hieu » toc thieu, hoc thieu, hoc hien
cong tac » cong ty
tac hanh » tac thanh, tac danh, sac hanh

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 xanh - thanh ((trung cua) or (trung cap)) dong cong tac hanh cham~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh ((trung cua) OR (trung cap)) dong cong tac hanh cham*.