Perhaps you should try some spelling variations:
hanh tranh » hanh trinh, lanh tranh, nhanh thanh
hanh trang » thanh trung, hanh trinh, minh trang
nang huong » nang thuong, nang luong, hang thuong
tieu xanh » tieu danh, chieu xanh, dieu hanh
chua nang » chuc nang, chua xang, kha nang
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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) OR (hanh trang))) or (canh tranh)) chua nang huong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((((hanh tranh) OR (hanh trang))) OR (canh tranh)) chua nang huong dan than cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((((hanh tranh) OR (hanh trang))) or (canh tranh)) chua nang huong dan than cau*".