Perhaps you should try some spelling variations:
quang phuong » bang phuong, dung phuong, hoang phuong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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 nhung) or (quang phuong)) cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh tranh ((cua nhung) OR (quang phuong)) cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh tranh ((cua nhung) or (quang phuong)) cong san toan cao*.