Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
thu sach » thuat sach, thuoc sach, thu hoach
ban hanh » ban hang
cac xuc » cam xuc, cac nuoc, chat xuc
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
tu sach » su sach, te sach, tu cach
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
v lang » va lang, o lang, _ lang

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) OR (thu sach)) v lang xa hoi. hieu viec cac xuc ((va hanh) or (ban hanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) v lang xa hoi. hieu viec cac xuc ((va hanh) OR (ban hanh)) vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) v lang xa hoi. hieu viec cac xuc ((va hanh) or (ban hanh)) vai cua tre*".