Perhaps you should try some spelling variations:
viet qua » vien quan, viet ha, viet duc
te sach » toc sach
qua cac » cua cac
cac vuc » cac nuoc, cac vung, cac cuoc
vuc van » duc van, luc van, thuc van
van anh » van thanh, tuan anh, van minh
y nang » ky nang, ly nang, v nang
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: te sach y nang x hoi. hieu qua cac vuc van anh ((viet qua) OR (ket qua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x hoi. hieu qua cac vuc van anh ((viet qua) OR (ket qua)) triet".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu qua cac vuc van anh ((viet qua) OR (ket qua)) triet*.