Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hien xanh » hien hanh, chieu xanh, hien khanh
cong cong » cong dong, trong cong, dung cong
cong luan » tong luan, cong tuan, dong luan
cong cua » cong cu, huong cua, thong cua
dong cua » dung cua, huong cua, thong cua
van bac » van ban, van bao, van hac

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 xanh) OR (hien nhanh)) - thanh ((cong cua) or (dong cua)) cong cong luan van bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - thanh ((cong cua) OR (dong cua)) cong cong luan van bac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - thanh ((cong cua) or (dong cua)) cong cong luan van bac".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien nhanh)) - thanh ((cong cua) or (dong cua)) cong cong luan van bac*.