Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien manh » hien hanh, tien manh, hieu manh
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
tuong dan » huong dan, tung dan, xuong dan
xuong san » xuong song, dong san, trong san
cong san » cong tac
can cau » van cau, ban cau, ca 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 - thanh trung cua thong ((tuong dan) or (((xuong san) OR (cong san)))) can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - thanh trung cua thong ((tuong dan) OR (((xuong san) OR (cong san)))) can cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien manh - thanh trung cua thong ((tuong dan) or (((xuong san) OR (cong san)))) can cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - thanh trung cua thong ((tuong dan) or (((xuong san) OR (cong san)))) can cau*.