Perhaps you should try some spelling variations:
phuong dinh » phuong linh, phuong trinh, phuong anh
phuong binh » phuong trinh, phuong anh, chuong trinh
hien sach » dien sach, kien sach, thien hach
hanh tran » hanh trang, thanh tran, hanh tram
tran van » luan van
van dung » van dong, xay dung, tin dung
toan cao » toan tap
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: hoc hien sach - hanh tran van dung ((phuong dinh) OR (phuong binh)) ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - hanh tran van dung ((phuong dinh) OR (phuong binh)) ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien sach - hanh tran van dung ((phuong dinh) OR (phuong binh)) ((toan cao) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - hanh tran van dung ((phuong dinh) OR (phuong binh)) ((toan cao) or (toan ban))*.