Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chinh » do chinh, tai chinh, hoc chinh
vat dung » van dung, viet dung, mat duong
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 duong, va ung

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chinh sach - hanh trinh ((vat dung) or (va dung)) cong san chan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chinh sach - hanh trinh ((vat dung) OR (va dung)) cong san chan ban.
• Adding a wildcard symbol may retrieve word variants: doi chinh sach - hanh trinh ((vat dung) or (va dung)) cong san chan ban*.