Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
su sach » so sach
dinh de » dinh ve, dinh du, dinh le
va dinh » van dinh, va kinh, va tinh
cac xuc » cam xuc, cac nuoc, chat xuc
van cac » van hac, van cau, van bac
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, vu khach
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua cu

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