Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
tu cach » tu cac
cac xuc » cam xuc, cac nuoc, cac cuoc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (thuat sach)) ky nang xa hoi. hieu ve ((cac xuc) OR (chat xuc)) van hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thuat sach)) ky nang xa hoi. hieu ve ((cac xuc) OR (chat xuc)) van hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (thuat sach)) ky nang xa hoi. hieu ve ((cac xuc) OR (chat xuc)) van hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thuat sach)) ky nang xa hoi. hieu ve ((cac xuc) OR (chat xuc)) van hanh vi cua tre*.