Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
tieu sach » chieu sach, dien sach, te sach
cua thong » cua thuong, cua khong, cua tong
cong tinh » cong trinh, cong vinh, long tinh
tung cua » trung cua, tuong cua, dung cua
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: theo ((tieu sach) or (chieu sang)) - thanh tung cua thong cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sach) OR (chieu sang)) - thanh tung cua thong cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sach) or (chieu sang)) - thanh tung cua thong cong tinh toan ban*.