Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa
cua tre » cua te, cuu tre, cua triet
ky dang » ky nang
ky danh » ky anh
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
duc ban » duc tan, duc van, dua ban
su xac » pu xac, su cac
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ((ky dang) OR (ky danh)) ma hoi. hieu ve cac duc ban ((thanh hai) or (thanh san)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ((ky dang) OR (ky danh)) ma hoi. hieu ve cac duc ban ((thanh hai) OR (thanh san)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ((ky dang) OR (ky danh)) ma hoi. hieu ve cac duc ban ((thanh hai) or (thanh san)) cua tre*".