Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
bach tuoc » sach duoc, sach nuoc
danh hoi » danh hoa, dan hoi, danh hoc
su sach » so sach, vu sach
hoi cua » hoi chuc
va danh » va dinh, va dan, va hanh
tuoc va » thuoc va, nuoc va, duoc va
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky ((nang xa) OR (nang x)) hoi. ((nhieu viec) or (hieu ve)) bach tuoc va danh hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (nang x)) hoi. ((nhieu viec) OR (hieu ve)) bach tuoc va danh hoi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((nang xa) OR (nang x)) hoi. ((nhieu viec) or (hieu ve)) bach tuoc va danh hoi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) OR (nang x)) hoi. ((nhieu viec) or (hieu ve)) bach tuoc va danh hoi cua tre*.