Perhaps you should try some spelling variations:
truong quan » trong quan, thong quan, luong quan
hoc thieu » toc thieu, hoc hien
tang luan » dung luan
ho chieu » theo chieu, doi chieu, mot chieu
thong va » thong cua, truong va, thong qua
toan ban » van ban
va toan » van toan, bai toan, tap toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) sach - hanh ((tang luan) or (truong quan)) thong thong va toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - hanh ((tang luan) OR (truong quan)) thong thong va toan ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - hanh ((tang luan) or (truong quan)) thong thong va toan ban*.