Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tranh qua » tranh cua, thanh qua, trinh qua
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
qua dung » quang dung, su dung, qua song
toan tap » toan ban
ha tinh » va tinh, may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((ha tinh) or (chieu sach)) - canh tranh qua dung cong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((ha tinh) OR (chieu sach)) - canh tranh qua dung cong tinh toan tap.
• Adding a wildcard symbol may retrieve word variants: ho ((ha tinh) or (chieu sach)) - canh tranh qua dung cong tinh toan tap*.