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