Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thue phuong » thu phuong, thi phuong, thu huong
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
thieu anh » thien anh, thien danh, thieu nhi
toan thue » toan thuc, toan thiet, tuan thu
cong than » cong thanh, cong thang, cong tan
than phan » thanh phan, toan phan, thanh pham
phan cac » nhan cach, phan dau, phan lap

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