Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
thang cua » thong cua, hang cua, than cua
trung cua » truong cua, trung tuan, trung cap
cong cong » cong dong, trong cong, dung cong
hoc hieu » hoc thieu, hoc hien, doc hieu
cong san » cong tac
san can » san van, ban can, san chang
can ban » van ban, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh ((thang cua) or (trung cua)) cong cong san can ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh ((thang cua) OR (trung cua)) cong cong san can ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh ((thang cua) or (trung cua)) cong cong san can ban*.