Perhaps you should try some spelling variations:
thanh tung » thanh cong
thieu xanh » chieu xanh, hieu manh, thien danh
thong cong » trong cong, tong cong, thong thong
thanh phan » thanh pho, thanh san, thanh toan
thien anh » thien danh, tien anh, thien thanh
tung toan » dung toan, truong toan, quang toan
than phan » toan phan, thanh pham, thanh nhan

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 toan thong cong ((than phan) OR (thanh phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - thanh tung toan thong cong ((than phan) OR (thanh phan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien anh)) - thanh tung toan thong cong ((than phan) OR (thanh phan)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - thanh tung toan thong cong ((than phan) OR (thanh phan)) cau*.