Perhaps you should try some spelling variations:
viec bao » viec ban, viec va, viec so
van hanh » van thanh, ban hanh, van anh
viec lam » viec va
sach ky » sac ky, sach ty, sach kem
xu van » tu van, vu van, su van
vi cua » vai cua, di cua
cua te » cua tu
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: tu ((sach ky) or (sach y)) nang x hoi. hieu ((viec bao) OR (viec lam)) xu van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang x hoi. hieu ((viec bao) OR (viec lam)) xu van hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sach y)) nang x hoi. hieu ((viec bao) OR (viec lam)) xu van hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang x hoi. hieu ((viec bao) OR (viec lam)) xu van hanh vi cua te*.