Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
hung cong » nhung cong, hung cuong, phung cong
hoc hieu » hoc thieu, hoc hien, doc hieu
cua hung » cua nhung, cua chung, cua huong
cong tac » cong ty
toan ban » van 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 - canh tranh cua hung cong tac ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh tranh cua hung cong tac ((toan ban) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh tranh cua hung cong tac ((toan ban) or (toan tap))*.