Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
thien anh » thien danh, tien anh, thien thanh
tung dap » trung dai, tuong dan, tuong dao
tung dan » dung dan, huong dan, trung dai
ung cong » dung cong, luong cong, duong cong
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (thien anh)) - thanh ((tung dap) OR (tung dan)) ung cong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - thanh ((tung dap) OR (tung dan)) ung cong thanh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien anh)) - thanh ((tung dap) OR (tung dan)) ung cong thanh toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - thanh ((tung dap) OR (tung dan)) ung cong thanh toan tap*.