Perhaps you should try some spelling variations:
su sach » so sach, vu sach
cac xuc » cam xuc, cac nuoc, chat xuc
va dinh » van dinh, va kinh, va tinh
hieu ve » hieu va, hieu van
le cua » ly cua
de cua » te cua, dieu cua
xuc va » duc va, tuc va, luc va
ve cac » va cac, vien cac
sach v » sach va, sach y, sach 2
ma hoi » mai hoi, ma hoa, me hoi
v nang » va nang, vu nang, van nang

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

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