Perhaps you should try some spelling variations:
nhanh lang » nhanh thang, nhan dang, nhanh dong
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, hoc hien, hoc dieu
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (ho chieu)) sach - ((nhanh lang) OR (nhanh quang)) cua nhung cong dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) sach - ((nhanh lang) OR (nhanh quang)) cua nhung cong dan than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (ho chieu)) sach - ((nhanh lang) OR (nhanh quang)) cua nhung cong dan than tap".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (ho chieu)) sach - ((nhanh lang) OR (nhanh quang)) cua nhung cong dan than tap*.