Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thanh toan » thanh hoa, thanh san, tinh toan
trung cap » truong cao, trung tam
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: hoc ((dieu hanh) or (chieu xanh)) - thanh trung cap ((nhung cong) OR (thong cong)) thanh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu hanh) OR (chieu xanh)) - thanh trung cap ((nhung cong) OR (thong cong)) thanh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((dieu hanh) or (chieu xanh)) - thanh trung cap ((nhung cong) OR (thong cong)) thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (chieu xanh)) - thanh trung cap ((nhung cong) OR (thong cong)) thanh toan cao*.