Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
cua truong » cua trung, xuan truong, cac truong
duong doan » phuong doan, duong van, duong dao
tranh cua » doanh cua, manh cua
duong dan » duong dang, huong dan, duong van
ho chieu » theo chieu, hoc thieu, doi chieu

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 tranh cua truong ((duong doan) or (duong dan)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh tranh cua truong ((duong doan) OR (duong dan)) phan tu.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh tranh cua truong ((duong doan) or (duong dan)) phan tu*.