Perhaps you should try some spelling variations:
khien tinh » thien tinh, khien thich, bien tinh
thanh binh » thai binh, tinh binh
nhung cong » dung cong, thong cong, hang cong
hien tinh » thien tinh, bien tinh, dien tinh
cua nhung » va nhung
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan ban » doanh ban, toan ban, doan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien tinh) OR (khien tinh)) - ((thanh binh) or (than kinh)) cua nhung cong tap doan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien tinh) OR (khien tinh)) - ((thanh binh) OR (than kinh)) cua nhung cong tap doan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien tinh) OR (khien tinh)) - ((thanh binh) or (than kinh)) cua nhung cong tap doan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien tinh) OR (khien tinh)) - ((thanh binh) or (than kinh)) cua nhung cong tap doan ban*.