Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hung huong » nhung huong, hung vuong, dung huong
hanh tran » hanh trang, thanh tran, hanh tram
ho chieu » hoc thieu, doi chieu, mot chieu
tran van » luan van
van hung » van dung, manh hung, van duong
toan tap » toan ban
toan cao » toan ban

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 (theo chieu)) sach - hanh tran van hung huong dan ((toan tap) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - hanh tran van hung huong dan ((toan tap) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sach - hanh tran van hung huong dan ((toan tap) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sach - hanh tran van hung huong dan ((toan tap) or (toan cao))*.