Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
van danh » van doanh, van anh, van hanh
viec cac » vien cac, viec cua, viec lam
thu sach » thuat sach, thuoc sach, thu hoach
nang xa » nang x, lang xa, nang ma
vai cau » va cau, vai cac, lai chau
van cau » van dau, van hau, van chat
tu sach » su sach, te sach, tu cach
y nang » ky nang, ly nang, v nang
cac lo » cac lop, cac co, cac bo
lo van » le van, vo van, so van

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