Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
xa doanh » va doanh, hoa doanh, van doanh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, dan cac
van bac » van ban, van bao, van hac
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang xa hoi. thien ((van cac) OR (van bac)) tuc xa doanh dan ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. thien ((van cac) OR (van bac)) tuc xa doanh dan ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. thien ((van cac) OR (van bac)) tuc xa doanh dan ((cua tre) or (cuu tre))*".