Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec bao » viec ban, viec lam, viec va
van hanh » van thanh, ban hanh, van ban
van anh » van thanh, tuan anh, van minh
sach ky » sac ky, sach ty, sach kem
bao xu » ban xu, bao xa, bo xu
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu
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 xu ((van hanh) OR (van anh)) vi cua tu~.
• 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 xu ((van hanh) OR (van anh)) vi cua tu.
• 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 xu ((van hanh) OR (van anh)) vi cua tu".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang x hoi. hieu viec bao xu ((van hanh) OR (van anh)) vi cua tu*.