Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
hanh trinh » canh tranh, hanh chinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong tinh » cong trinh, cong vinh, long tinh
cua dang » cua cong, cua ban
cua dong » chua dong, cua cong, cua nong
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: toc ((thieu xanh) OR (hieu manh)) - hanh trinh ((cua dang) or (cua dong)) cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu xanh) OR (hieu manh)) - hanh trinh ((cua dang) OR (cua dong)) cong tinh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu xanh) OR (hieu manh)) - hanh trinh ((cua dang) or (cua dong)) cong tinh toan ban*".