Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
cham xuc » cam xuc, chat xuc, cham soc
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
va dinh » van dinh, va kinh, va tinh
ky sang » ky dang, ky tang, duy sang
hai cua » thai cua, dai cua, hoi cua
su sach » so sach, vu sach
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((ky sang) OR (ky nang)) ma hoi. hieu ve cham xuc ((va hanh) or (va dinh)) hai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky sang) OR (ky nang)) ma hoi. hieu ve cham xuc ((va hanh) OR (va dinh)) hai cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky sang) OR (ky nang)) ma hoi. hieu ve cham xuc ((va hanh) or (va dinh)) hai cua viet".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky sang) OR (ky nang)) ma hoi. hieu ve cham xuc ((va hanh) or (va dinh)) hai cua viet*.