Perhaps you should try some spelling variations:
phuong manh » phuong anh, phung manh, phuong hanh
phuong danh » phuong anh, phuong dinh, phuong hanh
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
va truong » van truong, xa truong, va thuong
trung va » truong va, trang va, trung ha
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 trung va truong ((phuong manh) OR (phuong danh)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh trung va truong ((phuong manh) OR (phuong danh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh trung va truong ((phuong manh) OR (phuong danh)) toan cao*.