Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
thu sach » tu sach, thuat sach, thuoc sach
viec dat » vien dai, vien da, viec lam
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
ty nang » ky nang, ty xang, ty hang
x hoi » xa hoi, o hoi, x ho
vi va » vai va, vu va, bi va
nuoc » quoc, duoc, ngoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (su sach)) ty nang x hoi. hieu viec dat nuoc va thanh ((vi va) or (vi van)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (su sach)) ty nang x hoi. hieu viec dat nuoc va thanh ((vi va) OR (vi van)) triet.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (su sach)) ty nang x hoi. hieu viec dat nuoc va thanh ((vi va) or (vi van)) triet*.