Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
cac thuc » cach thuc, cac thu, can thuc
te sach » toc sach
sach ky » sac ky, sach y, sach ty
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
luu tre » luu tru, cuu tre, luy tre
vi luu » vi lua
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: te sach ky nang x hoi. hieu viec cac thuc ((va danh) OR (va dinh)) vi luu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. hieu viec cac thuc ((va danh) OR (va dinh)) vi luu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. hieu viec cac thuc ((va danh) OR (va dinh)) vi luu tre*.