Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien bach » vien bach, thien hach, hien hanh
nang xa » nang x, lang xa, nang ma
tuoc va » thuoc va, nuoc va, tuc va
duoc va » nuoc va, duc va, duoc ma
danh du » danh dau, danh tu, anh du
dinh du » dinh duc, dinh cu, dinh tu
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang xa hoi. hieu hien bach ((tuoc va) or (duoc va)) ((danh du) OR (dinh du)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu hien bach ((tuoc va) OR (duoc va)) ((danh du) OR (dinh du)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu hien bach ((tuoc va) or (duoc va)) ((danh du) OR (dinh du)) cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu hien bach ((tuoc va) or (duoc va)) ((danh du) OR (dinh du)) cua tre*.