Perhaps you should try some spelling variations:
hang hai » hoang hai, hang tai, thanh hai
hanh hai » thanh hai, nhanh hai, hanh tai
hieu van » hieu va, thien van, lieu va
hoc anh » hoc nganh, hoc nhanh, ngoc anh
van cam » van nam, van lam, van cau
xuc ban » duc ban, cuc ban, quoc ban
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky danh
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc anh ((ky dang) or (ky nang)) xay hoi. hieu van cam xuc ban ((hanh hai) OR (hang hai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc anh ((ky dang) OR (ky nang)) xay hoi. hieu van cam xuc ban ((hanh hai) OR (hang hai)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc anh ((ky dang) or (ky nang)) xay hoi. hieu van cam xuc ban ((hanh hai) OR (hang hai)) cua tre*".