Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
hieu manh » hieu nganh, dieu hanh, hien hanh
trung ca » trung cap, truong ca, trung cua
ca thong » ca thuong, va thong, ca trong
cong tap » cuong tap, cong tac, cong tan
toan ban » van ban
toan cao » toan tap

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 manh) or (chieu xanh)) - thanh trung ca thong cong tap ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu manh) OR (chieu xanh)) - thanh trung ca thong cong tap ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doc ((hieu manh) or (chieu xanh)) - thanh trung ca thong cong tap ((toan ban) or (toan cao))*.