Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien tinh » khien tinh, thien tinh, dien tinh
bien tinh » bi tinh, yen tinh, diep tinh
doanh cua » doanh luan
manh cua » ban cua
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan tap » han tap, phan tap, chan ta

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 (bien tinh)) - hanh ((manh cua) or (doanh cua)) nhung cong dan chan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien tinh) OR (bien tinh)) - hanh ((manh cua) OR (doanh cua)) nhung cong dan chan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien tinh) OR (bien tinh)) - hanh ((manh cua) or (doanh cua)) nhung cong dan chan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien tinh) OR (bien tinh)) - hanh ((manh cua) or (doanh cua)) nhung cong dan chan tap*.