Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
duong cong » dung cong, luong cong, duong trong
thien anh » thien danh, tien anh, thien thanh
hung tuan » quang tuan, trung tuan, hung thang
hung tran » huong tran, quang tran, hung thang
cong tinh » cong trinh, cong vinh, long tinh
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 ((hung tuan) OR (hung tran)) duong cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - thanh ((hung tuan) OR (hung tran)) duong cong tinh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien anh)) - thanh ((hung tuan) OR (hung tran)) duong cong tinh toan ban*".