Perhaps you should try some spelling variations:
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang
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 chu xanh - ((anh tang) or (anh nang)) cua ((hang cong) OR (dang cong)) tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - ((anh tang) OR (anh nang)) cua ((hang cong) OR (dang cong)) tinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - ((anh tang) or (anh nang)) cua ((hang cong) OR (dang cong)) tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((anh tang) or (anh nang)) cua ((hang cong) OR (dang cong)) tinh toan ban*.