Perhaps you should try some spelling variations:
sach vay » sach va, sach hay, sach nay
cham luc » cham soc, nhan luc, cham cuu
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua
cua te » cua tu

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