Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu nganh » vien nganh, hiem ngan, hieu manh
manh hung » anh huong
nong cong » cong cong, tong cong, nang cong
hung cua » huong cua, chung cua, khung cua
cua nong » cua cong, cuu nong, cua dong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 nganh) or (dieu hanh))) or (chieu sang)) - manh hung cua nong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hieu nganh) OR (dieu hanh))) OR (chieu sang)) - manh hung cua nong cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hieu nganh) or (dieu hanh))) or (chieu sang)) - manh hung cua nong cong dan toan cao*.