Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chong gian » khong gian, thong giao, phong giao
canh tran » canh tranh, hanh trang, banh trang
van nhung » van nhuong, va nhung, van hung
chong dan » cong dan, thong dan, cuong danh
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - canh tran van nhung ((chong dan) OR (chong gian)) ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - canh tran van nhung ((chong dan) OR (chong gian)) ((toan tai) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - canh tran van nhung ((chong dan) OR (chong gian)) ((toan tai) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh tran van nhung ((chong dan) OR (chong gian)) ((toan tai) or (toan cao))*.