Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
ho chieu » theo chieu, doi chieu, mot chieu
mang cua » manh cua, dung cua, ban cua
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan dau » phan tu, hang dau

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 - cach mang cua nhung ((cong dan) OR (cong tan)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - cach mang cua nhung ((cong dan) OR (cong tan)) phan dau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sach - cach mang cua nhung ((cong dan) OR (cong tan)) phan dau*".