Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
nong cong » cong cong, tong cong, nang cong
cong cua » cong cu, dong cua, huong cua
cua nong » cua cong, cuu nong, cua dong
cong van » cong vang, cong san, song van
than cau » toan cau, phan cau, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (hieu manh)) - thanh cong cua nong cong van ((than cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - thanh cong cua nong cong van ((than cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - thanh cong cua nong cong van ((than cau) or (phan tu))*.