Perhaps you should try some spelling variations:
nhieu viec » nhien viet
hieu viec » hieu ve, sieu viet, hieu tiem
hieu hien » bieu hien, dieu hien, chieu chien
cau treo » cau theo, cau tren, cau triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
cac tu » cac thu, cach tu, cac du
di cau » da cau, diem cau
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: tu sach ky nang x hoi. ((((hieu viec) OR (nhieu viec))) or (hieu hien)) cac tu va danh di cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. ((((hieu viec) OR (nhieu viec))) OR (hieu hien)) cac tu va danh di cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. ((((hieu viec) OR (nhieu viec))) or (hieu hien)) cac tu va danh di cau treo".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. ((((hieu viec) OR (nhieu viec))) or (hieu hien)) cac tu va danh di cau treo*.