Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
mot chieu » doi chieu, ho chieu
trinh cua » tinh cua, trinh luat, trinh quan
nong cong » cong cong, tong cong, nang cong
cua nong » cua cong, cuu nong, cua dong
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (hoc hien)) sach - hanh trinh cua nong cong ((van toan) or (van tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (hoc hien)) sach - hanh trinh cua nong cong ((van toan) OR (van tuan)) cao.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (hoc hien)) sach - hanh trinh cua nong cong ((van toan) or (van tuan)) cao*.