Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chuc danh » chuc nganh, thuc hanh, chuc nang
hanh tang » hanh trang, anh tang, hanh mang
hang cong » dang cong, hang nong, bang cong
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang
tang va » trang va, tang van, thang va
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chuc danh) or (chieu xanh)) - hanh tang va hang cong ((dan than) OR (ban than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chieu xanh)) - hanh tang va hang cong ((dan than) OR (ban than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chieu xanh)) - hanh tang va hang cong ((dan than) OR (ban than)) cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chieu xanh)) - hanh tang va hang cong ((dan than) OR (ban than)) cao*.