Perhaps you should try some spelling variations:
quan nhung » qua nhung, cua nhung, luan chung
chieu sang » chieu sach, chieu xanh, hieu lang
cong hoan » cong hoa, dong hoa, cong ha
ho chieu » theo chieu, hoc thieu, doi chieu
canh ban » canh dan, canh van, doanh ban
cong san » cong tac
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: ho chieu sang - ((canh ban) OR (can ban)) quan nhung ((cong hoan) or (cong san)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((canh ban) OR (can ban)) quan nhung ((cong hoan) OR (cong san)) phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((canh ban) OR (can ban)) quan nhung ((cong hoan) or (cong san)) phan tu".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((canh ban) OR (can ban)) quan nhung ((cong hoan) or (cong san)) phan tu*.