Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
nhung cong » dung cong, thong cong, hang cong
nhan mang » nhanh mang, nhan dang, nhan lang
cua nhung » va nhung
cong tinh » cong trinh, cong vinh, long tinh
mang cua » manh cua, dung cua, ban cua
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 ((chieu sach) or (chinh sach)) - nhan mang cua nhung cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chinh sach)) - nhan mang cua nhung cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chinh sach)) - nhan mang cua nhung cong tinh toan cau*.