Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
thanh toan » thanh hoa, thanh san, tinh toan
thien anh » thien danh, tien anh, thien thanh
cong cong » cong dong, trong cong, dang cong
dung cong » dung trong
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
toan cau » 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 ((thieu xanh) or (thien anh)) - anh tang cua ((cong cong) OR (dung cong)) thanh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - anh tang cua ((cong cong) OR (dung cong)) thanh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien anh)) - anh tang cua ((cong cong) OR (dung cong)) thanh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - anh tang cua ((cong cong) OR (dung cong)) thanh toan cau*.