Perhaps you should try some spelling variations:
phuong manh » phuong anh, phuong danh, phuong hanh
chiet tach » chieu sach
phung manh » hung manh, nhung manh, phung minh
hoc chiet » hoc thiet, hoc nhiet, hoc hien
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chiet tach - manh tung ap dung ((phuong manh) OR (phung manh)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - manh tung ap dung ((phuong manh) OR (phung manh)) toan ban*.