Perhaps you should try some spelling variations:
hanh than » hanh han, hanh nhan, hanh phan
hieu vien » hieu hien, hieu viec, thieu nien
nang doc » nang luc
cac nuoc » cap nuoc, hoc nuoc, cua nuoc
ban hanh » ban hang
than cua » nhan cua, thai cua, ban cua
doc hoi » duoc hoi, hoc hoi, doc hai
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang doc hoi. hieu vien ((cac nuoc) or (dat nuoc)) ban hanh than cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang doc hoi. hieu vien ((cac nuoc) OR (dat nuoc)) ban hanh than cua tre.
• Adding a wildcard symbol may retrieve word variants: su sac ky nang doc hoi. hieu vien ((cac nuoc) or (dat nuoc)) ban hanh than cua tre*.