Perhaps you should try some spelling variations:
thieu bien » thieu nien, hien bien, hieu hien
toc sach » hoc sach, doc sach, thuoc sach
vi triet » ve triet, va triet, tim triet
nang xa » lang xa, nang ma, mang xa
sach ty » sach y, sach tu, sach thu
tam xuc » cam xuc, tam thuc
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
xuc va » duc va, tuc va, luc va
va vi » ba vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty ((nang xa) OR (nang x)) hoi. ((thieu bien) or (tieu bieu)) tam xuc va hanh va vi triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty ((nang xa) OR (nang x)) hoi. ((thieu bien) OR (tieu bieu)) tam xuc va hanh va vi triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty ((nang xa) OR (nang x)) hoi. ((thieu bien) or (tieu bieu)) tam xuc va hanh va vi triet*".