Perhaps you should try some spelling variations:
ve triet » va trien, su triet
van hanh » van thanh, ban hanh, van anh
vuc van » duc van, luc van, thuc van
sach ty » sach y, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
sach tu » sach thu, cach tu, sach uu
ve cac » va cac, vien cac
kem ve » ke ve
ve cam » ve cham, va cam, ve cai

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 ty) OR (sach tu)) nang xa hoi. hieu ((ve cam) OR (ve cac)) vuc van hanh kem ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach tu)) nang xa hoi. hieu ((ve cam) or (ve cac)) vuc van hanh kem ve triet~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach tu)) nang xa hoi. hieu ((ve cam) or (ve cac)) vuc van hanh kem ve triet*.