Perhaps you should try some spelling variations:
chua xang » chua nang, chuc nang, chu bang
dung cong » dung trong
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
chu xanh » chu manh, chieu xanh, chuc danh
tung cao » nung cao, truong cao, trung cap
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chua xang)) - thanh ((tung cao) OR (trung tam)) dung cong hach toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) OR (chua xang)) - thanh ((tung cao) or (trung tam)) dung cong hach toan tap~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) OR (chua xang)) - thanh ((tung cao) or (trung tam)) dung cong hach toan tap*.