Perhaps you should try some spelling variations:
chiet tach » chieu sach
thong cong » trong cong, tong cong, thong thong
nang hang » nang sang, hang hang, cang thang
ho chiet » ho chieu, ho thiet, hoc thiet
va thong » va thuong, va phuong, he thong
tan van » tran van, tang van, dang van
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - nang hang va thong cong ((tan van) OR (luan van)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - nang hang va thong cong ((tan van) OR (luan van)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - nang hang va thong cong ((tan van) OR (luan van)) cau*.