Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chinh » do chinh, tai chinh, hoc chinh
hang cong » dang cong, bang cong, thanh cong
hang nong » thang long, han tong
trinh ve » trinh he, trinh va, trinh vi
san chan » san chang, dan chan, san chay
chan ban » can ban, chat ban, chan nan

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 ve ((hang cong) OR (hang nong)) san chan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chinh sach - hanh trinh ve ((hang cong) OR (hang nong)) san chan ban".
• Adding a wildcard symbol may retrieve word variants: doi chinh sach - hanh trinh ve ((hang cong) OR (hang nong)) san chan ban*.