Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
huong cua » dung cua
bang song » nang song
song xuat » san xuat, cong suat, song cua
mang cua » manh cua, dung cua, ban cua
phan cau » phan dau, phan cac, phan lap

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 - hanh ((mang cua) or (huong cua)) bang song xuat ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh ((mang cua) OR (huong cua)) bang song xuat ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((mang cua) or (huong cua)) bang song xuat ((phan cau) or (phan tu))*.