Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
nhung cong » thong cong, hang cong, nhung don
thanh toan » thanh hoa, thanh san, tinh toan
hien xanh » hien hanh, hien nhanh, hien khanh
dung cong » dung trong
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (chieu xanh)) - hanh trinh quan ((nhung cong) OR (dung cong)) thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - hanh trinh quan ((nhung cong) OR (dung cong)) thanh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (chieu xanh)) - hanh trinh quan ((nhung cong) OR (dung cong)) thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu xanh)) - hanh trinh quan ((nhung cong) OR (dung cong)) thanh toan ban*.