Perhaps you should try some spelling variations:
phuong khanh » phuong thanh, phuong hanh, phuong anh
hoi phuong » hoai phuong, hoc phuong, doi phuong
chieu xanh » chieu sach, chieu sang, chieu tinh
lan tranh » lanh tranh, luan tranh, can tranh
ho chieu » theo chieu, hoc thieu, doi chieu
toan cao » toan tap
toan ban » van ban
cua hoi » cua moi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - ((lan tranh) or (canh tranh)) cua hoi phuong khanh ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((lan tranh) OR (canh tranh)) cua hoi phuong khanh ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((lan tranh) or (canh tranh)) cua hoi phuong khanh ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((lan tranh) or (canh tranh)) cua hoi phuong khanh ((toan cao) OR (toan ban))*.