Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh ve » hanh vi, hanh va, hanh kem
va hanh » van hanh, va thanh, va danh
sach ky » sac ky, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
ve cai » va cai, ve tai, ve cau
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
ve su » va su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) OR (sach y)) nang xa hoi. hieu ((ve cai) or (ve cac)) xuc va hanh ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang xa hoi. hieu ((ve cai) OR (ve cac)) xuc va hanh ve su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) nang xa hoi. hieu ((ve cai) or (ve cac)) xuc va hanh ve su triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) nang xa hoi. hieu ((ve cai) or (ve cac)) xuc va hanh ve su triet*.