Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
van thanh » ban thanh, van tuan
vien cac » vien bach, vien dai, vien da
cua tre » cua te, cuu tre, cua triet
hai cua » thai cua, dai cua, hoi cua
nang ma » tang ma, sang ma, nang cao
luc van » luoc van, luu van, duc van
su sac » su sach, su xac
ve cac » va cac
ma hoi » mai hoi, xa hoi, ma hoa
su cac » tu cac, su cao, su can

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) OR (su cac)) ky nang ma hoi. hieu ((ve cac) or (vien cac)) luc van thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su cac)) ky nang ma hoi. hieu ((ve cac) OR (vien cac)) luc van thanh hai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su cac)) ky nang ma hoi. hieu ((ve cac) or (vien cac)) luc van thanh hai cua tre*".