Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
thu sach » thuat sach, thuoc sach, thu hoach
viec cac » vien cac, viec cua, viec lam
van danh » van doanh, van anh, van hanh
danh vai » danh sai, danh va, doanh van
cau treo » cau theo, cau tren, cau triet
tu sach » su sach, te sach, tu cach
nang ma » tang ma, sang ma, nang cao
vai cau » va cau, van cau, vai cac
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
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 ma hoi. hieu viec cac lo van danh vai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) y nang ma hoi. hieu viec cac lo van danh vai cau treo*.