Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
lv nang » ly nang
van cam » van nam, van lam, van cau
va hanh » van hanh, va thanh, va danh
hanh de » hanh ve, hanh kem
v nang » va nang, vu nang, van nang
xuc va » duc va, tuc va, luc va
de cua » le cua, te cua, dieu cua
o hoi » co hoi, o hoc, o hai

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 ((v nang) or (lv nang)) o hoi. hieu van cam xuc va hanh de cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (lv nang)) o hoi. hieu van cam xuc va hanh de cua viet.
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (lv nang)) o hoi. hieu van cam xuc va hanh de cua viet*.