Perhaps you should try some spelling variations:
phuong hanh » phuong thanh, phuong anh, phuong danh
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
phuong dan » phuong danh, phuong doan, huong dan
doi chieu » doc hieu, doi chi, ho chieu
toan cau » toan cao, toan ban, toan tap
cua nhu » cua nhua, cua chu, cua khu
cua nha » cua nhan, cua ngan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - thanh tung ((cua nhu) OR (cua nha)) ((phuong dan) or (phuong hanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh tung ((cua nhu) OR (cua nha)) ((phuong dan) OR (phuong hanh)) toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh tung ((cua nhu) OR (cua nha)) ((phuong dan) or (phuong hanh)) toan cau*".