Perhaps you should try some spelling variations:
phuong dinh » phuong binh, phuong linh, phuong trinh
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
dinh toan » tinh toan, hinh toan, minh toan
toan tap » toan ban
cua nhu » cua nhua, cua nha, cua khu
cua chu » sua chua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - hanh tranh ((cua nhu) OR (cua chu)) phuong dinh toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sang)) - hanh tranh ((cua nhu) OR (cua chu)) phuong dinh toan tap~".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - hanh tranh ((cua nhu) OR (cua chu)) phuong dinh toan tap*.