Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
cua viet » ca viet, hoa viet, cua vat
sach ly » sach lo, sach ty, sach hay
hieu va » lieu va, hieu qua
va cham » va chat, va tham
luc va » duc va, tuc va, loc va
ca cua » co cua
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 ly) OR (sach y)) nang x hoi. hieu va cham luc va ((dai cua) or (ca cua)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ly) OR (sach y)) nang x hoi. hieu va cham luc va ((dai cua) OR (ca cua)) cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ly) OR (sach y)) nang x hoi. hieu va cham luc va ((dai cua) or (ca cua)) cua viet*".