Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
hieu hien » dieu hien, chieu chien, dieu khien
bieu hien » dieu hien, dieu khien, bien phien
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
vai cua » dai cua, hai cua, lai cua
anh vai » anh va, anh bai, anh van
van anh » van thanh, tuan anh, van minh
su van » tu van, vu van
cac su » cach su, cac sau, cac du
y nang » ky nang, ly nang, v nang
cua tu » cua tuc, cua su, cua cu

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 y nang xa hoi. ((hieu viec) or (((hieu hien) or (bieu hien)))) cac su van anh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. ((hieu viec) OR (((hieu hien) OR (bieu hien)))) cac su van anh vai cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. ((hieu viec) or (((hieu hien) or (bieu hien)))) cac su van anh vai cua tu*.