Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chinh chau » chinh cho, chinh phu, minh chau
hien manh » hien hanh, tien manh, hieu manh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
chinh cau » chinh ca, chinh can, chinh tai
cong dan » cong san, cong tan, huong dan
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: hoc hien manh - canh tranh cua nhung cong dan ((chan cau) or (((chinh cau) OR (chinh chau))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - canh tranh cua nhung cong dan ((chan cau) OR (((chinh cau) OR (chinh chau)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien manh - canh tranh cua nhung cong dan ((chan cau) or (((chinh cau) OR (chinh chau))))".
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - canh tranh cua nhung cong dan ((chan cau) or (((chinh cau) OR (chinh chau))))*.