Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
cham cuu » cap cuu, chat cua
cham luc » cham soc, nhan luc, chat lua
cua cua » cua chua, ca cua, qua cua
ban cua » ban quan
hieu va » lieu va, hieu qua
tu sach » thu sach, su sach, te sach
ly vang » ly hang, ly van, ly quang
ly nang » ky nang, ly hang, ly quang
va ban » van ban, va bai, va bao
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: tu sach ((ly nang) OR (ly vang)) x hoi. hieu va ((cham luc) or (cham cuu)) va ban cua cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly nang) OR (ly vang)) x hoi. hieu va ((cham luc) OR (cham cuu)) va ban cua cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ly nang) OR (ly vang)) x hoi. hieu va ((cham luc) or (cham cuu)) va ban cua cua viet*".