Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
hang doanh » hanh doanh, nhung doanh, van doanh
doanh luan » doanh nhan
hoc thien » hoc hien, hoc thieu, hoc thiet
nang cong » nang song, dang cong, hang cong
bang cong » dang cong, bang song, hang cong
pham can » pham van, pham lan, pham san
pham ca » pham ma, pham va, pham ba

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