Perhaps you should try some spelling variations:
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
hanh dan » thanh dan, hanh san, hanh dao
canh dan » canh van, sanh dan, thanh dan
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, 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: theo chu xanh - ((hanh dan) OR (canh dan)) cua ((hang cong) or (dung cong)) tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - ((hanh dan) OR (canh dan)) cua ((hang cong) OR (dung cong)) tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - ((hanh dan) OR (canh dan)) cua ((hang cong) or (dung cong)) tan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((hanh dan) OR (canh dan)) cua ((hang cong) or (dung cong)) tan toan cao*.