Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
hieu manh » hieu nganh, hien hanh, hieu van
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua thong » cua thuong, cua khong, cua tong
tinh cua » trinh cua, sinh cua, tinh chat
dong van » duong van, dang van, dong von

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 (dieu hanh))) or (chieu xanh)) - hanh tinh cua thong cong dong van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hieu manh) OR (dieu hanh))) OR (chieu xanh)) - hanh tinh cua thong cong dong van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hieu manh) or (dieu hanh))) or (chieu xanh)) - hanh tinh cua thong cong dong van ban*.