Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
dang mat » dang vat, dang mau, dung mat
quoc bao » quoc oai, hoc bao, quoc va
cua tre » cua te, cuu tre, cua triet
hai cua » thai cua, dai cua, hoi cua
duc ban » duc tan, duc van, dua ban
hieu va » lieu va
mat hoi » mai hoi, sat hoi, mat troi
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky dang mat hoi. ((hieu va) OR (hieu qua)) cam ((duc ban) or (quoc bao)) thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang mat hoi. ((hieu va) OR (hieu qua)) cam ((duc ban) OR (quoc bao)) thanh hai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky dang mat hoi. ((hieu va) OR (hieu qua)) cam ((duc ban) or (quoc bao)) thanh hai cua tre*".