Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
phong toan » phong thanh, phong trao, phong van
hieu manh » chieu xanh, hieu nganh, dieu hanh
chinh ban » chinh bao, chinh can, chinh ngan
ban nhung » san nhung, ban phuong, gian nhung
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 nhung 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 nhung cong ((bang toan) OR (phong toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sang)) - hanh chinh ban nhung cong ((bang toan) or (phong toan)) cau*.