Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
mot chieu » ho chieu
doi chieu » doc hieu, doi chi, ho chieu
trinh vat » trinh van, trinh luat, sinh vat
vat dung » van dung, va dung, viet dung
san tan » van tan, san tay, san ten
san van » tan van, luan van, tran van

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) OR (doi chieu)) xanh - hanh trinh vat dung trong ((san tan) OR (san van)) cau~".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) OR (doi chieu)) xanh - hanh trinh vat dung trong ((san tan) OR (san van)) cau*.