Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
coc hoc » co hoc, toc hoc, hoc hoc
va hanh » van hanh, va thanh, va danh
sach v » sach va, sach 2, sach vay
ve coc » ve cuoc, ve cac, ve co
vi cau » va cau, ve cau, viet cau
di cau » da cau, diem cau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach v) OR (sach y)) nang xa hoi. hieu ve coc hoc va hanh ((vi cau) OR (di cau)) treo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach v) or (sach y)) nang xa hoi. hieu ve coc hoc va hanh ((vi cau) OR (di cau)) treo~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach v) or (sach y)) nang xa hoi. hieu ve coc hoc va hanh ((vi cau) OR (di cau)) treo*.