Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
hieu van » hieu va, thien van, lieu va
danh gia » dan gian
ty nang » ky nang, ty hang, ly nang
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
va danh » va dinh, va dan, va hanh
su tien » su kien, su hien, tu tieng
xuc va » duc va, tuc va, luc va
gia su » gia suc, giao su, gia sa

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach ((ty nang) OR (ty xang)) xa hoi. hieu van cac xuc va danh gia su tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach ((ty nang) OR (ty xang)) xa hoi. hieu van cac xuc va danh gia su tien".
• Adding a wildcard symbol may retrieve word variants: doc sach ((ty nang) OR (ty xang)) xa hoi. hieu van cac xuc va danh gia su tien*.