Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
thieu xanh » chieu xanh, hieu manh, thien danh
thong cong » trong cong, tong cong, thong thong
cong thanh » dong thanh, cong trinh, cong tan
thien anh » thien danh, tien anh, thien thanh
cua thong » cua thuong, cua khong, cua tong
dung cua » dung luan, dung cho
than ban » thanh ban, than man, nhuan ban
toan ban » van 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 dung cua thong cong thanh ((than ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - thanh dung cua thong cong thanh ((than ban) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - thanh dung cua thong cong thanh ((than ban) or (toan ban))*.