Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
tieu xanh » tieu danh, chieu xanh, tien anh
thanh son » thanh san, thanh cong, thanh toan
dung cong » dung trong
vat dung » van dung, va dung, viet dung
toan cao » toan tap
toan ban » van ban
son vat » so vat, son va, son van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu xanh) OR (dieu hanh)) - thanh son vat dung cong thanh ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (dieu hanh)) - thanh son vat dung cong thanh ((toan cao) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) OR (dieu hanh)) - thanh son vat dung cong thanh ((toan cao) or (toan ban))*".