Perhaps you should try some spelling variations:
sach nuoc » sach duoc, cac nuoc, bach tuoc
hieu viec » nhieu viec, sieu viet, hieu hien
thanh doi » thanh loi, thanh moi, thanh do
danh doi » danh di, dung doi, danh hoa
bach ky » bac ky
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cua te » cua tu

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

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