Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hieu van » hieu va, thien van, lieu va
kha nang » phap nang, ky nang, ki nang
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
te sach » toc sach
lo nang » ho nang, ly nang, loai nang
van cam » van nam, van lam, van cau
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((lo nang) or (kha nang)) xa hoi. hieu van cam xuc ((va hanh) or (va danh)) di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((lo nang) OR (kha nang)) xa hoi. hieu van cam xuc ((va hanh) OR (va danh)) di cua viet.
• Adding a wildcard symbol may retrieve word variants: te sach ((lo nang) or (kha nang)) xa hoi. hieu van cam xuc ((va hanh) or (va danh)) di cua viet*.