Perhaps you should try some spelling variations:
cua phuong » cuu phuong, cuc phuong, luan phuong
cua thuong » cua truong, ca thuong, cua huong
hanh mang » nhanh mang, hanh trang, nhanh lang
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
dong tac » cong tac, dong tai, dong bac
quan cau » quang cao, toan cau, quan ha

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) or (theo chu)) sach - hanh mang ((cua thuong) OR (cua phuong)) dong tac quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) sach - hanh mang ((cua thuong) OR (cua phuong)) dong tac quan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chu)) sach - hanh mang ((cua thuong) OR (cua phuong)) dong tac quan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) sach - hanh mang ((cua thuong) OR (cua phuong)) dong tac quan cau*.