Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
sach ky » sac ky, sach ty, sach kem
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
vi va » vi van, vai va, vu va

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 ky) or (sach y)) ((nang xa) or (nang x)) hoi. hieu va cam xuc va hanh vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) ((nang xa) OR (nang x)) hoi. hieu va cam xuc va hanh vi va triet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) ((nang xa) or (nang x)) hoi. hieu va cam xuc va hanh vi va triet*.