Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien nhanh » hien hanh, thien thanh, tien thanh
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, chieu xanh, hien khanh
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong dung » cuong dung, cong dong, cong luong
ran cau » van cau, ban cau, tran chau
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 xanh) OR (hien nhanh)) - thanh trung cua thong cong dung ((ran cau) or (can cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - thanh trung cua thong cong dung ((ran cau) OR (can cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - thanh trung cua thong cong dung ((ran cau) or (can cau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien nhanh)) - thanh trung cua thong cong dung ((ran cau) or (can cau))*.