Perhaps you should try some spelling variations:
hieu viec » nhieu viec, sieu viet, hieu tiem
hieu hien » bieu hien, dieu hien, chieu chien
thu sach » tu sach, thuat sach, thuoc sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
cuu tre » cua tre, cau tren, cau treo
cac tu » cac thu, cach tu, cac du
di cuu » di cau, di cua, dinh cuu
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. ((((hieu viec) or (hieu ve))) or (hieu hien)) cac tu va danh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x hoi. ((((hieu viec) OR (hieu ve))) OR (hieu hien)) cac tu va danh di cuu tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x hoi. ((((hieu viec) or (hieu ve))) or (hieu hien)) cac tu va danh di cuu tre*.