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 tinh, hanh dinh, hanh trinh
cua thong » cua thuong, cua khong, cua tong
thong van » trong van, thong va, thong quan
van tan » van tuan, van ban, van tai
tan tap » toan tap, han tap, tan tat

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