Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien bach » vien bach, thien hach, hien hanh
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
duoc va » nuoc va, duc va, duoc ma
danh du » danh dau, danh tu, dinh du
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa
du cua » duy cua, dau cua, dum cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang xa hoi. hieu hien bach ((tuc va) or (duoc va)) danh du cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu hien bach ((tuc va) OR (duoc va)) danh du cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu hien bach ((tuc va) or (duoc va)) danh du cua tre*.