Perhaps you should try some spelling variations:
thieu bien » thieu nien, tieu bieu, hien bien
bien cac » vien cac, dien cac, bien ca
ve triet » va trien, su triet
hanh tai » thanh tai, hang tai, han tai
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
te sach » toc sach
nang xa » lang xa, nang ma, mang xa
sach ky » sac ky, sach y, sach ty
xuc va » duc va, tuc va, luc 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 ((nang xa) OR (nang x)) hoi. thieu bien cac xuc va hanh tai ((ve triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang xa) OR (nang x)) hoi. thieu bien cac xuc va hanh tai ((ve triet) OR (va thiet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((nang xa) OR (nang x)) hoi. thieu bien cac xuc va hanh tai ((ve triet) or (va thiet))".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang xa) OR (nang x)) hoi. thieu bien cac xuc va hanh tai ((ve triet) or (va thiet))*.