Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, hieu cach
chieu sang » hieu lang, nhieu tang
chieu xanh » chieu tinh, hieu manh
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
mang cua » manh cua, dung cua, ban cua
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (((chieu sang) OR (chieu xanh)))) - cach mang cua thong cong tac phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (((chieu sang) OR (chieu xanh)))) - cach mang cua thong cong tac phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (((chieu sang) OR (chieu xanh)))) - cach mang cua thong cong tac phan cau*".