Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
quan anh » quan hanh, quang anh, xuan anh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cac luc » cau luc, coc luc, cac nuoc
vai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de cua
tuan » tran, luan, toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu va cac luc ((quan anh) OR (tuan anh)) ((di cua) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu va cac luc ((quan anh) OR (tuan anh)) ((di cua) OR (vai cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. hieu va cac luc ((quan anh) OR (tuan anh)) ((di cua) or (vai cua)) tre*".