Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hieu vien » hieu hien, thieu nien, hieu tieng
hieu viec » nhieu viec, hieu ve, sieu viet
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van anh » van thanh, tuan anh, van minh
anh via » anh va, anh bia, anh viet
via cua » gia cua, gian cua, giau cua
cac lo » cac lop, cac co, cac bo
lo van » le van, vo van, so 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: thuoc sach ky nang xa hoi. ((hieu vien) OR (hieu viec)) cac lo van anh via cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ky nang xa hoi. ((hieu vien) OR (hieu viec)) cac lo van anh via cua te".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky nang xa hoi. ((hieu vien) OR (hieu viec)) cac lo van anh via cua te*.