Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
doi chieu » doc hieu, doi chi, mot chieu
van thanh » ban thanh, van tuan
ho chieu » theo chieu, hoc thieu, mot chieu
quan van » luan van, quan va, quan luan
van cong » van dong, van phong, phan cong
van tan » van tuan, van ban, van tai

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

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