Perhaps you should try some spelling variations:
phuong manh » phuong anh, phuong hanh, phuong thanh
phuong danh » phuong anh, phuong dinh, phuong hanh
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
phung manh » hung manh, nhung manh, phung minh
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tang cua » mang cua, hang cua, tang luan
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: theo chieu sach - hanh tang cua nhung ((((phuong manh) OR (phung manh))) or (phuong danh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh tang cua nhung ((((phuong manh) OR (phung manh))) OR (phuong danh)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh tang cua nhung ((((phuong manh) OR (phung manh))) or (phuong danh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh tang cua nhung ((((phuong manh) OR (phung manh))) or (phuong danh)) toan cao*.