Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu sach » chieu sach, hieu cach, dien sach
trinh cua » tinh cua, trinh luat, trinh quan
cua khong » hua khong, cua phuong, cua thuong
doc hieu » toc thieu, hoc thieu, hoc hien
cang tac » cong tac, canh tac, can tac
sang tac » sang tao, sang tai, sang than
phat dau » phan dau, pham dau, phap dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sach - hanh trinh cua khong ((cang tac) or (sang tac)) phat dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sach - hanh trinh cua khong ((cang tac) OR (sang tac)) phat dau.
• Adding a wildcard symbol may retrieve word variants: doc hieu sach - hanh trinh cua khong ((cang tac) or (sang tac)) phat dau*.