Perhaps you should try some spelling variations:
phan luc » nhan luc, phan duc, phan suc
tu sach » thu sach, su sach, tu cach
te sach » toc sach
hieu va » lieu va, hieu qua
va phan » van phan, va phat, va phap
luc van » luoc van, luu van, duc van
anh ve » hanh ve, anh va, thanh ve
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang x hoi. hieu va phan luc van ((anh ve) OR (anh viet)) cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang x hoi. hieu va phan luc van ((anh ve) OR (anh viet)) cua vat~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang x hoi. hieu va phan luc van ((anh ve) OR (anh viet)) cua vat*.