Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, thong thong, phong chong
tong cong » trong cong, cong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam

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 xanh - ((hanh tranh) OR (hanh trinh)) cua ((thong cong) or (tong cong)) dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((hanh tranh) OR (hanh trinh)) cua ((thong cong) OR (tong cong)) dan khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((hanh tranh) OR (hanh trinh)) cua ((thong cong) or (tong cong)) dan khan cap".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((hanh tranh) OR (hanh trinh)) cua ((thong cong) or (tong cong)) dan khan cap*.