Perhaps you should try some spelling variations:
phuong tinh » phuong trinh, phuong binh, khuong tinh
dung phuong » dung thuong, bang phuong, dung chung
hien sach » dien sach, kien sach, thien hach
manh tung » manh hung, thanh tung
toan ban » van ban
tung ap » tang ap, tung dan, tung bay
ap dung » xay dung, van dung

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 - manh tung ap dung phuong tinh toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - manh tung ap dung phuong tinh toan ban*.