Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
danh dien » dinh dien, danh kien, danh lien
tang van » hoang van, trong van, tang luan
dang van » hoang van, hang va
thuc xa » thuc xay, tuc xa, thuc va
danh di » danh du, xanh di, danh gia
su sach » so sach, vu sach
va nham » va cham, va tham, va nha
sach v » sach va, sach y, sach 2
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach v ((tang van) or (dang van)) hoi. lieu va nham thuc xa ((danh di) OR (danh dien)) cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v ((tang van) OR (dang van)) hoi. lieu va nham thuc xa ((danh di) OR (danh dien)) cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach v ((tang van) or (dang van)) hoi. lieu va nham thuc xa ((danh di) OR (danh dien)) cua su".
• Adding a wildcard symbol may retrieve word variants: su sach v ((tang van) or (dang van)) hoi. lieu va nham thuc xa ((danh di) OR (danh dien)) cua su*.