Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa
hieu van » hieu va, thien van, lieu va
duc manh » suc manh, duc anh, duc minh
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
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 tang xa hoi. hieu van cam duc manh ((thanh hai) or (thanh san)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky tang xa hoi. hieu van cam duc manh ((thanh hai) OR (thanh san)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sac ky tang xa hoi. hieu van cam duc manh ((thanh hai) or (thanh san)) cua tre*.