Perhaps you should try some spelling variations:
nhieu viec » nhien viet
hieu viec » hieu ve, sieu viet, hieu hien
sach thu » sach thue, sach thieu, sach tham
thu vang » thu hang, thu bang, thu dang
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
cua cuc » cua cac, cua cu, cua duc
tu sach » thu sach, su sach, te sach
cua xuc » cua duc, cua tuc, cua nuoc
vang xa » lang xa, mang xa, ang xa
di cua » dai cua, doi cua, de 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: tu sach thu vang xa hoi. ((hieu viec) OR (nhieu viec)) ((cua xuc) or (cua cuc)) va hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu vang xa hoi. ((hieu viec) OR (nhieu viec)) ((cua xuc) OR (cua cuc)) va hanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu vang xa hoi. ((hieu viec) OR (nhieu viec)) ((cua xuc) or (cua cuc)) va hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach thu vang xa hoi. ((hieu viec) OR (nhieu viec)) ((cua xuc) or (cua cuc)) va hanh di cua te*.