Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong hanh, phuong thanh
phuong dinh » phuong binh, phuong linh, phuong trinh
hieu nganh » vien nganh, hiem ngan, hieu manh
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
trinh va » trinh van, trinh vat, trinh ve
toan ban » van ban
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu nganh) or (chiet tach)) - hanh trinh va dung ((phuong danh) OR (phuong dinh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu nganh) OR (chiet tach)) - hanh trinh va dung ((phuong danh) OR (phuong dinh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu nganh) or (chiet tach)) - hanh trinh va dung ((phuong danh) OR (phuong dinh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu nganh) or (chiet tach)) - hanh trinh va dung ((phuong danh) OR (phuong dinh)) toan ban*.