Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
cac thuc » cach thuc, cac thu, cay thuc
can thuc » dan thuc, van thuc, cay thuc
dien cua » dieu cua, dien cuc, dien cu
ba dien » bai dien, ban dien, bat dien
cua tre » cua te, cuu tre, cua triet
vu sai » vu hai, vu san, vu dai
sai ky » sac ky
vat ba » vat va, vat da, hat ba
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 vien ((cac thuc) OR (can thuc)) vat ba dien cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sai ky nang x hoi. hieu vien ((cac thuc) OR (can thuc)) vat ba dien cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sai ky nang x hoi. hieu vien ((cac thuc) OR (can thuc)) vat ba dien cua tre*.