Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
hieu vien » hieu hien, thieu nien, hieu tieng
hieu viec » nhieu viec, hieu ve, sieu viet
hoc sach » hoc sinh, hoc cac, hoc anh
via cua » gia cua, gian cua, giau cua
nang xa » nang x, lang xa, nang ma
anh via » anh va, anh bia, anh viet
van anh » van thanh, tuan anh, van minh
lo van » le van, vo van, so van
cac lo » cac lop, cac co, cac bo
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) OR (hoc sach)) ky nang xa hoi. ((hieu vien) or (hieu viec)) cac lo van anh via cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (hoc 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) OR (hoc 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) OR (hoc sach)) ky nang xa hoi. ((hieu vien) or (hieu viec)) cac lo van anh via cua te*.