Perhaps you should try some spelling variations:
phuong dinh » phuong binh, phuong linh, phuong trinh
dung phuong » dung thuong, bang phuong, dung chung
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 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 hien sach - hanh tran van dung phuong dinh ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - hanh tran van dung phuong dinh ((toan cao) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - hanh tran van dung phuong dinh ((toan cao) or (van ban))*.