Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, hieu ve
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
danh vi » hanh vi, dinh vi, danh di
cuu tre » cua tre, cau tren, cau treo
xuc va » tuc va, luc va, xac va
vi cuu » vi luu, vinh cuu

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 ky nang xa hoi. ((hieu van) or (lieu va)) cham ((xuc va) OR (duc va)) danh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. ((hieu van) OR (lieu va)) cham ((xuc va) OR (duc va)) danh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. ((hieu van) or (lieu va)) cham ((xuc va) OR (duc va)) danh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. ((hieu van) or (lieu va)) cham ((xuc va) OR (duc va)) danh vi cuu tre*.