Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
hieu viec » nhieu viec, hieu ve, sieu viet
van dung » van dong, xay dung, tin dung
hoc sach » hoc sinh, hoc cac, hoc anh
viec cac » vien cac, viec cua, viec lam
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
cuc tre » duc tre, cua tre, cuu tre
ky dang » ky nang, ky danh
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) OR (hoc sach)) ky dang ((ma hoi) or (xa hoi)). hieu viec cac xuc van dung tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (hoc sach)) ky dang ((ma hoi) OR (xa hoi)). hieu viec cac xuc van dung tai cuc tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) OR (hoc sach)) ky dang ((ma hoi) or (xa hoi)). hieu viec cac xuc van dung tai cuc tre".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) OR (hoc sach)) ky dang ((ma hoi) or (xa hoi)). hieu viec cac xuc van dung tai cuc tre*.