Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
viec cac » vien cac, viec cua, viec lam
thu sach » tu sach, thuat sach, thuoc sach
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
cac xuc » cam xuc, cac nuoc, chat xuc
va tinh » may tinh
tinh te » kinh te, tinh tu, tinh he
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
te cua » tue cua, le cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((thu sach) or (thu hoach))) or (su sach)) ky nang xa hoi. nhieu viec cac xuc va tinh te cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((thu sach) OR (thu hoach))) OR (su sach)) ky nang xa hoi. nhieu viec cac xuc va tinh te cua tre.
• Adding a wildcard symbol may retrieve word variants: ((((thu sach) or (thu hoach))) or (su sach)) ky nang xa hoi. nhieu viec cac xuc va tinh te cua tre*.