Perhaps you should try some spelling variations:
hien bien » dien bien, khien dien, hien nhien
cua viet » ca viet, hoa viet, cua vat
hanh dai » hanh tai, hanh dao, vanh dai
sach thu » sach thue, sach thieu, sach tham
bien cac » vien cac, dien cac, bien ca
va hanh » van hanh, va thanh, va danh
cac xuc » cam xuc, cac nuoc, chat xuc
sach ty » sach y, sach tu, xach tay
nang xa » lang xa, nang ma, mang xa
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 ty) OR (sach thu)) ((nang xa) or (nang x)) hoi. hien bien cac xuc va hanh dai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach thu)) ((nang xa) OR (nang x)) hoi. hien bien cac xuc va hanh dai cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach thu)) ((nang xa) or (nang x)) hoi. hien bien cac xuc va hanh dai cua viet".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) OR (sach thu)) ((nang xa) or (nang x)) hoi. hien bien cac xuc va hanh dai cua viet*.