Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
vat dung » van dung, viet dung, mat duong
va duong » van duong, va tuong, va huong
cong san » cong tac
san chan » san chang, dan chan, san chay
chan ban » can ban, chat ban, chan nan
va dung » van dung, va ung, va dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh trinh ((vat dung) or (((va dung) OR (va duong)))) cong san chan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trinh ((vat dung) OR (((va dung) OR (va duong)))) cong san chan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh trinh ((vat dung) or (((va dung) OR (va duong)))) cong san chan ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trinh ((vat dung) or (((va dung) OR (va duong)))) cong san chan ban*.