Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong thanh
phuong hanh » phuong thanh, phuong anh, phuong hoang
chiet tach » chieu sach
hanh trang » thanh trung, canh tranh, hanh trinh
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
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 ((chiet tach) or (chinh sach)) - hanh trang cua nhung ((phuong danh) OR (phuong hanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chiet tach) OR (chinh sach)) - hanh trang cua nhung ((phuong danh) OR (phuong hanh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chiet tach) or (chinh sach)) - hanh trang cua nhung ((phuong danh) OR (phuong hanh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chiet tach) or (chinh sach)) - hanh trang cua nhung ((phuong danh) OR (phuong hanh)) toan cau*.