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
tuoc va » thuoc va, nuoc va, duoc va
dinh du » dinh duc, dinh cu, dinh tu
y nang » ky nang, ly nang, v nang
du cua » duy cua, dau cua, dum cua
cua te » cua tu

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 ((tuoc va) or (duc va)) dinh du cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu hien bach ((tuoc va) OR (duc va)) dinh du cua te.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu hien bach ((tuoc va) or (duc va)) dinh du cua te*.