Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
cao thong » cao thuong, tao thong, cao phong
san thanh » ban thanh, van thanh, son thanh
tung cao » nung cao, truong cao, trung cap
san than » sang than, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chieu sang)) - thanh tung cao thong cong ((san than) or (san thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu sang)) - thanh tung cao thong cong ((san than) OR (san thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu sang)) - thanh tung cao thong cong ((san than) or (san thanh)) cau*.