Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong hanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
phuong dan » phuong doan, huong dan, phuong lan
doi chieu » doc hieu, doi chi, ho chieu
trinh va » trinh van, trinh vat, trinh ve
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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 - hanh trinh va nhung ((phuong dan) OR (phuong danh)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh trinh va nhung ((phuong dan) OR (phuong danh)) ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh trinh va nhung ((phuong dan) OR (phuong danh)) ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh trinh va nhung ((phuong dan) OR (phuong danh)) ((toan cau) or (toan ban))*.