Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien bach » vien bach, thien hach, hien hanh
danh dau » lanh dao, hang dau, danh tu
dau cua » dai cua, day cua, cau cua
te sach » toc sach
cao hoi » cau hoi, co hoi, cao hoc
ty nang » ty xang, ty hang, ly nang
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

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 nang) OR (ky nang)) cao hoi. hieu hien bach ((xuc va) or (tuc va)) danh dau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ky nang)) cao hoi. hieu hien bach ((xuc va) OR (tuc va)) danh dau cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ky nang)) cao hoi. hieu hien bach ((xuc va) or (tuc va)) danh dau cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ky nang)) cao hoi. hieu hien bach ((xuc va) or (tuc va)) danh dau cua tre*.