Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
cong thong » cong thuong, cong trong, dong thong
hieu manh » hieu nganh, dieu hanh, hien hanh
trinh cua » tinh cua, trinh luat, trinh quan
thong dan » thong van, tuong dan, thong den
dan nhanh » dan hanh, dan khanh, dan thanh
nhanh bac » nhanh ha, nhanh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (((chieu xanh) OR (hieu manh)))) - hanh trinh cua cong thong dan nhanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (((chieu xanh) OR (hieu manh)))) - hanh trinh cua cong thong dan nhanh bac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (((chieu xanh) OR (hieu manh)))) - hanh trinh cua cong thong dan nhanh bac".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (((chieu xanh) OR (hieu manh)))) - hanh trinh cua cong thong dan nhanh bac*.