Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trung phat » truong phat, trong phat, trung phan
hoc chieu » hoc thieu, ho chieu, hoc hien
trung pha » trung phan, trung ha, truong phan
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cau » 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: hoc chieu xanh - hanh ((trung pha) or (trung phat)) nhung ((cong dan) OR (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh ((trung pha) OR (trung phat)) nhung ((cong dan) OR (cong tan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh ((trung pha) or (trung phat)) nhung ((cong dan) OR (cong tan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh ((trung pha) or (trung phat)) nhung ((cong dan) OR (cong tan)) toan cau*.