Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
thanh toan » thanh hoa, thanh san, tinh toan
trinh vat » trinh van, trinh luat, sinh vat
dung cong » dung trong
manh toan » anh tuan, tinh toan
vat dung » van dung, va dung, viet dung

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