Perhaps you should try some spelling variations:
hanh huong » thanh huong, anh huong, manh huong
cua truong » cua trung, xuan truong, cac truong
tieu sang » chieu sang, tieu dung, tiem nang
huong cua » dung cua
cong hach » cong sach, cong thanh, cong khanh
cong nhat » cong nhan, cong ha, cong suat
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: theo tieu sang - hanh huong cua truong ((cong hach) or (cong nhat)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - hanh huong cua truong ((cong hach) OR (cong nhat)) toan ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - hanh huong cua truong ((cong hach) or (cong nhat)) toan ban*.