Perhaps you should try some spelling variations:
nhieu viec » nhien viet
hieu viec » hieu ve, sieu viet, hieu hien
cau treo » cau theo, cau tren, cau triet
nang xa » nang x, lang xa, nang ma
anh vai » anh bai, anh van, anh tai
tu sach » thu sach, su sach, te sach
y nang » ky nang, ly nang, v nang
cac lo » cac lop, cac co, cac bo
lo van » le van, vo van, so van
anh va » hanh va

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 (nhieu viec)) cac lo van ((anh vai) OR (anh va)) cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. ((hieu viec) OR (nhieu viec)) cac lo van ((anh vai) OR (anh va)) cau treo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. ((hieu viec) or (nhieu viec)) cac lo van ((anh vai) OR (anh va)) cau treo*".