Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tieu xanh » tieu danh, chieu xanh, dieu hanh
tranh cua » doanh cua, manh cua
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van
toan cao » toan ban
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: theo tieu xanh - hanh tranh cua cong ((cong van) OR (song van)) ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh tranh cua cong ((cong van) OR (song van)) ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh tranh cua cong ((cong van) OR (song van)) ((toan cao) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh tranh cua cong ((cong van) OR (song van)) ((toan cao) or (toan tap))*.