Perhaps you should try some spelling variations:
viet cham » viet nam, viet ha, viet phan
thanh ve » hanh ve, thanh va, thanh vien
dau tien » van tien
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
vu cham » va cham, vu kham, tu cham
ve chat » va chat, van chat
soc gia » toc gia, hoc gia, so gia
y nang » ky nang, ly nang, v nang
ve dau » va dau, ve du, ke dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang xa hoi. hieu ((((viet cham) or (vu cham))) or (ve chat)) soc gia thanh ve dau tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((((viet cham) OR (vu cham))) OR (ve chat)) soc gia thanh ve dau tien.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((((viet cham) or (vu cham))) or (ve chat)) soc gia thanh ve dau tien*.