Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
tang duy » tang du, tung duy, hoang duy
tang quy » tan quy, nang quy, tang quan
toan ban » van ban

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) or (theo chu)) xanh - anh ((tang duy) OR (tang quy)) dung cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (theo chu)) xanh - anh ((tang duy) OR (tang quy)) dung cong thanh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo tieu) or (theo chu)) xanh - anh ((tang duy) OR (tang quy)) dung cong thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (theo chu)) xanh - anh ((tang duy) OR (tang quy)) dung cong thanh toan ban*.