Perhaps you should try some spelling variations:
day dang » da dang, dai dang, day dan
cac thuc » cach thuc, can thuc, cay thuc
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
dang do » nang doc, dang duc, dung doi
cac thu » cach thuc, cac thoi
hieu ve » hieu va, hieu van
sai ky » sac ky
vu sai » vu hai, vu san, vu dai
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sai ky nang x hoi. hieu ve ((cac thuc) or (cac thu)) day dang do ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sai ky nang x hoi. hieu ve ((cac thuc) OR (cac thu)) day dang do ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sai ky nang x hoi. hieu ve ((cac thuc) or (cac thu)) day dang do ((cua tre) OR (cuu tre))*".