Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
thong cong » trong cong, tong cong, thong thong
dung cong » dung trong
thanh hoa » thanh pho
ho chieu » theo chieu, hoc thieu, doi chieu
hoa tap » khoa tap, hoc tap, hoa tan

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 sach - hanh trinh quan ((dung cong) or (thong cong)) thanh hoa tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh quan ((dung cong) OR (thong cong)) thanh hoa tap.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh quan ((dung cong) or (thong cong)) thanh hoa tap*.