Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
trinh toan » tinh toan, thanh toan, trinh han
tieu sach » chieu sach, te sach, viet sach
dien sach » dien anh
cua khong » hua khong, cua phuong, cua thuong
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu sach) OR (dien sach)) - anh tang cua khong cong trinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu sach) OR (dien sach)) - anh tang cua khong cong trinh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sach) OR (dien sach)) - anh tang cua khong cong trinh toan cau*.