Perhaps you should try some spelling variations:
hanh han » hanh nhan, hanh phan, hanh san
van hanh » van thanh, ban hanh, van anh
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
cuu tre » cua tre, cau tren, cau treo
cac xuc » cam xuc, chat xuc, cac cuoc
han cuu » han cua, hang cua, nhan cua
hieu ve » hieu va, hieu van
tu sac » tu sach, tu cac, tu san
nang o » nang co, nang ho, nang ro
tu ban » thu ban, te ban
o lai » o lao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (tu ban)) ky nang o lai. hieu ve ((cac xuc) or (cac nuoc)) van hanh han cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu ban)) ky nang o lai. hieu ve ((cac xuc) OR (cac nuoc)) van hanh han cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu ban)) ky nang o lai. hieu ve ((cac xuc) or (cac nuoc)) van hanh han cuu tre*.