Perhaps you should try some spelling variations:
doanh lai » doanh tai, doanh luan, doanh giai
nien cac » vien cac, dien cac, hien cac
bien cac » vien cac, dien cac, bien ca
toc sach » hoc sach, doc sach, thuoc sach
lai cua » dai cua, hai cua, lai chau
lo toan » lo tan, le toan, ly toan
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
cua te » cua tu

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 (toc sach)) ky nang xa hoi. thieu ((nien cac) OR (bien cac)) lo toan doanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (toc sach)) ky nang xa hoi. thieu ((nien cac) OR (bien cac)) lo toan doanh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (toc sach)) ky nang xa hoi. thieu ((nien cac) OR (bien cac)) lo toan doanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (toc sach)) ky nang xa hoi. thieu ((nien cac) OR (bien cac)) lo toan doanh lai cua te*.