Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
chat thong » chat chong, chat phong, chat trong
thong cong » trong cong, tong cong, thong thong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
thien anh » thien danh, tien anh, thien thanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
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)) - hanh tinh chat thong cong thanh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - hanh tinh chat thong cong thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - hanh tinh chat thong cong thanh toan cao*.