Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
hieu xanh » hieu manh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
than cap » khan cap, thanh lap, thanh cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) OR (chieu xanh)) - thanh trung cua nhung cong vang ((than cap) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu xanh)) - thanh trung cua nhung cong vang ((than cap) OR (phan tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (chieu xanh)) - thanh trung cua nhung cong vang ((than cap) or (phan tu))".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (chieu xanh)) - thanh trung cua nhung cong vang ((than cap) or (phan tu))*.