Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sang » chieu sach, chieu xanh, hieu lang
ban phuong » bang phuong, ban huong, van phuong
phong toan » phong thanh, phong trao, phong van
hieu manh » chieu xanh, hieu nganh, dieu hanh
chinh ban » chinh bao, chinh can, chinh ngan
bang toan » bong toan, dang toan, bang thanh

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) or (chieu sang)) - hanh chinh ban phuong cong ((bang toan) or (phong toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sang)) - hanh chinh ban phuong cong ((bang toan) OR (phong toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sang)) - hanh chinh ban phuong cong ((bang toan) or (phong toan)) cau*.