Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trinh » canh tranh, hanh chinh
trong quan » thong quan, tong quan, thong quang
quan toan » quang toan, quan doan, xuan toan
cua dong » chua dong, cua dang, cua nong
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu nganh)) - hanh trinh ((cua dong) OR (cua cong)) trong quan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (hieu nganh)) - hanh trinh ((cua dong) OR (cua cong)) trong quan toan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu nganh)) - hanh trinh ((cua dong) OR (cua cong)) trong quan toan ban*.