Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
dang xay » dang van
viec cam » viec lam, viec cua, viec va
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
va tinh » may tinh
tinh de » tinh da, sinh de, tinh he
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
de cua » le cua, te cua, dieu cua

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 ty ((dang xay) OR (van xay)) hoi. nhieu viec cam xuc va tinh de cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((dang xay) OR (van xay)) hoi. nhieu viec cam xuc va tinh de cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((dang xay) OR (van xay)) hoi. nhieu viec cam xuc va tinh de cua tre*.