Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
sach ky » sach y, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
sac ky » cac ky, sai ky
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: te ((sach ky) or (sac ky)) nang xa hoi. ((hieu ve) or (hieu va)) cam xuc va hanh vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc va hanh vi va triet.
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sac ky)) nang xa hoi. ((hieu ve) or (hieu va)) cam xuc va hanh vi va triet*.