Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trung » thanh trung, manh trung, danh trung
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
nhan cach » phan cac
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sang - ((hanh trung) OR (hanh trang)) va nhung cong dan ((phan cau) or (nhan cach))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - ((hanh trung) OR (hanh trang)) va nhung cong dan ((phan cau) OR (nhan cach)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sang - ((hanh trung) OR (hanh trang)) va nhung cong dan ((phan cau) or (nhan cach))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - ((hanh trung) OR (hanh trang)) va nhung cong dan ((phan cau) or (nhan cach))*.