Perhaps you should try some spelling variations:
thieu bien » thieu nien, tieu bieu, hien bien
toc sach » hoc sach, doc sach, thuoc sach
bien cac » vien cac, dien cac, bien ca
sach ty » sach y, sach tu, sach thu
nang xa » lang xa, nang ma, mang xa
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
xuc va » duc va, tuc va, luc va
di hoa » dai hoa, doi hoa, do hoa

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 cac xuc va hanh di hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty ((nang xa) OR (nang x)) hoi. thieu bien cac xuc va hanh di hoa viet.
• Adding a wildcard symbol may retrieve word variants: toc sach ty ((nang xa) or (nang x)) hoi. thieu bien cac xuc va hanh di hoa viet*.