Perhaps you should try some spelling variations:
phuong danh » phuong dinh, phuong hanh, phuong thanh
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » hanh trinh, hanh trang, lanh tranh
phuong anh » phuong hoang
ho chieu » theo chieu, hoc thieu, doi chieu
toan cao » toan ban, toan tap
cua toi » cua hoi, cua moi, cua loai

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 chieu sang - ((hanh tranh) OR (canh tranh)) cua toi ((phuong danh) OR (phuong anh)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((hanh tranh) or (canh tranh)) cua toi ((phuong danh) OR (phuong anh)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((hanh tranh) or (canh tranh)) cua toi ((phuong danh) OR (phuong anh)) toan cao*.