Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
trinh quan » tinh quang, trinh luat, trinh han
dung tong » dung thong, dung cong, dung dong
luan phan » luan van, luan hoan
ho chieu » theo chieu, hoc thieu, doi chieu

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 trinh quan ((dung tong) OR (dung trong)) luan phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - canh trinh quan ((dung tong) OR (dung trong)) luan phan tu".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh trinh quan ((dung tong) OR (dung trong)) luan phan tu*.