Perhaps you should try some spelling variations:
sach vay » sach va, sach hay, sach nay
nang xa » nang x, lang xa, nang ma
vu cham » va cham, tu cham, qua cham
vu kham » vu khanh
vi cua » vai cua, di cua
dan vi » doan vi, don vi, dan va
va dan » ca dan, va dao, va dau
luc va » duc va, tuc va, loc va
cua tu » cua tuc, cua su, cua cu

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: te ((sach vay) OR (sach y)) nang xa hoi. hieu ((vu cham) OR (vu kham)) luc va dan vi cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach vay) or (sach y)) nang xa hoi. hieu ((vu cham) OR (vu kham)) luc va dan vi cua tu~".
• Adding a wildcard symbol may retrieve word variants: te ((sach vay) or (sach y)) nang xa hoi. hieu ((vu cham) OR (vu kham)) luc va dan vi cua tu*.