Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
cau treo » cau theo, cau tren, cau triet
danh vai » danh sai, doanh van, dang van
viec cac » vien cac, viec cua, viec lam
danh va » doanh va, hanh va, anh va
tu sach » thu sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
co van » cao van, vo van, so van
y nang » ky nang, ly nang, v nang
cac co » cac cong

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