Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
kieu tinh » lieu tinh, diep tinh, bien tinh
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
san van » tan van, luan van, tran van

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

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