Perhaps you should try some spelling variations:
thien bang » khien bang, thien ban, thien dang
nhung cong » dung cong, thong cong, nhung lang
hoc thien » hoc hien, hoc thieu, hoc thiet
tranh cua » doanh cua, manh cua
nhung don » nhung van, nhung bo
hang cong » dang cong, hang nong, bang cong
ban thanh » ban hanh, ban hang
thanh tap » thanh lap, thanh tai, thanh tay

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

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