Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » thanh trung, manh hung, sinh trung
thanh tung » thanh cong
quang dung » quang trung, ung dung, cuong dung
manh tung » manh hung
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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