Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
cuu phuong » cac phuong, thu phuong
chau tinh » cuu tinh, ha tinh, cua tinh
hanh dung » thanh dung, anh dung, hanh dong
dung cuu » dung cua, dung cu, dung cau
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
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 ((chau tinh) or (((chieu sach) OR (chieu sang)))) - hanh dung cuu phuong cong tap toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chau tinh) OR (((chieu sach) OR (chieu sang)))) - hanh dung cuu phuong cong tap toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chau tinh) or (((chieu sach) OR (chieu sang)))) - hanh dung cuu phuong cong tap toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chau tinh) or (((chieu sach) OR (chieu sang)))) - hanh dung cuu phuong cong tap toan cau*.