Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
hieu vien » hieu hien, thieu nien, hieu tieng
hieu viec » nhieu viec, hieu ve, sieu viet
van triet » va triet, van thiet, van trieu
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
cac dac » cac dan, cac dai, cac bac
va hanh » van hanh, va thanh, va danh
hanh ve » hanh vi, hanh va, hanh kem
dac va » duc va, day va, dat va
ve van » le van

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc sach ty nang xa hoi. ((hieu vien) OR (hieu viec)) cac dac va hanh ve van triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach ty nang xa hoi. ((hieu vien) OR (hieu viec)) cac dac va hanh ve van triet".
• Adding a wildcard symbol may retrieve word variants: nuoc sach ty nang xa hoi. ((hieu vien) OR (hieu viec)) cac dac va hanh ve van triet*.