Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
doanh luan » doanh nhan
hoc thien » hoc hien, hoc thieu, hoc thiet
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
dan chan » dan gian, dan ca, van chat
chan lap » phan lap, thanh lap, dan lap

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 hach - canh ((doanh cua) or (doanh luan)) ((hang cong) OR (bang cong)) dan chan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - canh ((doanh cua) OR (doanh luan)) ((hang cong) OR (bang cong)) dan chan lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - canh ((doanh cua) or (doanh luan)) ((hang cong) OR (bang cong)) dan chan lap".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - canh ((doanh cua) or (doanh luan)) ((hang cong) OR (bang cong)) dan chan lap*.