Perhaps you should try some spelling variations:
van nang » van quang, van ban, van dong
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
va dinh » van dinh, va kinh, va tinh
dinh de » dinh ve, dinh du, dinh le
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, voi nang
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
de cua » le cua, te cua, dieu cua
cua te » cua tu

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