Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cac xuc » cam xuc, cac nuoc, cac cuoc
cuu tre » cua tre, cau tren, cau treo
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
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) OR (nang x)) hoi. hieu ve ((cac xuc) or (chat xuc)) van hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang xa) OR (nang x)) hoi. hieu ve ((cac xuc) OR (chat xuc)) van hanh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((nang xa) OR (nang x)) hoi. hieu ve ((cac xuc) or (chat xuc)) van hanh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang xa) OR (nang x)) hoi. hieu ve ((cac xuc) or (chat xuc)) van hanh vi cuu tre*.