Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
dung huong » dung thuong, dung phuong, dong huong
huong manh » duong manh, hung manh, luong manh
tranh qua » tranh cua, thanh qua, trinh qua
qua dung » quang dung, su dung, qua song
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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 sach) OR (chiet tach)) - canh tranh qua dung huong manh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - canh tranh qua dung huong manh ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chiet tach)) - canh tranh qua dung huong manh ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chiet tach)) - canh tranh qua dung huong manh ((toan cau) or (toan ban))*.