Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong tan, cong dong, cong tac
cong san » cong tac
toan tap » toan 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 - hanh tranh cua nhung ((((cong dan) OR (cong san))) or (huong dan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - hanh tranh cua nhung ((((cong dan) OR (cong san))) OR (huong dan)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - hanh tranh cua nhung ((((cong dan) OR (cong san))) or (huong dan)) toan tap".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - hanh tranh cua nhung ((((cong dan) OR (cong san))) or (huong dan)) toan tap*.