Perhaps you should try some spelling variations:
trung thanh » truong thanh
hanh trung » thanh trung, hanh trang, manh trung
thanh dang » thanh hang, thanh dan, thanh dong
hieu lang » chieu sang, hieu quang, nhieu tang
chau tinh » cuu tinh, ha tinh, cua tinh
dang cong » dung cong
chinh cau » chinh chau, chinh ca, chinh can
cong san » cong tac
chan cau » phan cau, can cau, nhanh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chau tinh)) - hanh trung thanh dang cong san ((chan cau) OR (chinh cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chau tinh)) - hanh trung thanh dang cong san ((chan cau) OR (chinh cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chau tinh)) - hanh trung thanh dang cong san ((chan cau) OR (chinh cau))".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chau tinh)) - hanh trung thanh dang cong san ((chan cau) OR (chinh cau))*.