Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh lam » thanh lap, hanh kem, hanh va
va hanh » van hanh, va thanh, va danh
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
lam su » lai su, lam so, lam vu

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