Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
cham luc » cham soc, nhan luc, chat lua
cham cuu » cap cuu, chat cua
van doan » van doanh, van toan, van hoan
van quan » van ban
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu van ((cham luc) or (cham cuu)) van doan ((ban quan) OR (van quan)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang x hoi. hieu van ((cham luc) OR (cham cuu)) van doan ((ban quan) OR (van quan)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. hieu van ((cham luc) or (cham cuu)) van doan ((ban quan) OR (van quan)) tre*".