Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh quan » tinh quang, trinh luat, trinh han
nhung tung » nhung tuong, nhung dung, nhung vung
hien xanh » hien hanh, hien nhanh, hien khanh
trinh cua » tinh cua, trinh luat, trinh luan
tung dan » dung dan, huong dan, trung dai
dan toan » van toan, dan than, manh toan
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: hoc ((hien xanh) OR (chieu xanh)) - hanh ((trinh cua) or (trinh quan)) nhung tung dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - hanh ((trinh cua) OR (trinh quan)) nhung tung dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (chieu xanh)) - hanh ((trinh cua) or (trinh quan)) nhung tung dan toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (chieu xanh)) - hanh ((trinh cua) or (trinh quan)) nhung tung dan toan tap*.