Perhaps you should try some spelling variations:
chiet tach » chieu sach
manh huong » anh huong, manh cuong, manh tuong
hoc chiet » hoc thiet, hoc nhiet, hoc hien
manh hung » anh huong
cong cong » cong dong, dung cong, dang cong
tan ban » toan ban, tang ban, van ban
ban cau » bang cau, ban can, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chiet tach - ((manh huong) OR (manh hung)) cua ((trong cong) or (cong cong)) tan ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - ((manh huong) OR (manh hung)) cua ((trong cong) OR (cong cong)) tan ban cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chiet tach - ((manh huong) OR (manh hung)) cua ((trong cong) or (cong cong)) tan ban cau".
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - ((manh huong) OR (manh hung)) cua ((trong cong) or (cong cong)) tan ban cau*.