Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
hanh hinh » hanh chinh, hanh tinh, hanh dinh
cua thong » cua thuong, cua khong, cua tong
trong van » trong cac
hinh cua » chinh cua, sinh cua, tinh cua
thong va » thong cua, truong va, thong qua
toan cau » 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 manh) or (chieu xanh)) - hanh hinh cua thong ((trong van) or (thong va)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - hanh hinh cua thong ((trong van) OR (thong va)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - hanh hinh cua thong ((trong van) or (thong va)) toan cau*.