Perhaps you should try some spelling variations:
thanh trung » thanh tung
truong cong » trong cong, truong dong, truong long
thieu xanh » chieu xanh, hieu manh, thien danh
trung hieu » thuong hieu, trung kien, trong hiep
trong long » trong luong, truong long, trong cong
thien anh » thien danh, tien anh, thien thanh
tan tranh » tan tran, can tranh, lan tranh
tranh ban » trinh ban, tranh hang, tranh luan

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 trung hieu ((truong cong) or (trong long)) tan tranh ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - thanh trung hieu ((truong cong) OR (trong long)) tan tranh ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - thanh trung hieu ((truong cong) or (trong long)) tan tranh ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - thanh trung hieu ((truong cong) or (trong long)) tan tranh ban*.