Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
trung tuan » trung thanh, trung tam, tran tuan
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, hien khanh
dang cong » dung cong
gian dan » gian lang

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 (chieu xanh)) - thanh trung tuan ((thong cong) or (dang cong)) dan gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - thanh trung tuan ((thong cong) OR (dang cong)) dan gian dan*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (chieu xanh)) - thanh trung tuan ((thong cong) or (dang cong)) dan gian dan*".