Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thu sach » tu sach, thuat sach, thu hoach
nhan luc » nang luc
cham luc » cham soc, cham cuu, chat lua
cua viet » ca viet, hoa viet, cua vat
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
dau cua » dai cua, day cua, cau cua
cua cua » cua chua, ca cua, qua cua
va dau » va dao
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) OR (thuoc sach)) ty nang x hoi. hieu va ((cham luc) or (nhan luc)) va dau cua cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuoc sach)) ty nang x hoi. hieu va ((cham luc) OR (nhan luc)) va dau cua cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuoc sach)) ty nang x hoi. hieu va ((cham luc) or (nhan luc)) va dau cua cua viet*".